chore(dependabot): cap open pull requests per update block

Adds `open-pull-requests-limit` to Dependabot update blocks that had no
cap, following the estate per-ecosystem cap doctrine (task #37).
No other line in the file is touched.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_011eQ7hibx92N7fBDtwgReWk

Author: hyperpolymath

.github/dependabot.yml

@@ -13,6 +13,7 @@ updates:
       actions:
         patterns:
           - "*"
+    open-pull-requests-limit: 2
 
   # Rust/Cargo
   - package-ecosystem: "cargo"
@@ -22,24 +23,28 @@ updates:
     ignore:
       - dependency-name: "*"
         update-types: ["version-update:semver-patch"]
+    open-pull-requests-limit: 0
 
   # Elixir/Mix
   - package-ecosystem: "mix"
     directory: "/"
     schedule:
       interval: "daily"
+    open-pull-requests-limit: 3
 
   # Node.js/npm
   - package-ecosystem: "npm"
     directory: "/"
     schedule:
       interval: "daily"
+    open-pull-requests-limit: 3
 
   # Python/pip
   - package-ecosystem: "pip"
     directory: "/"
     schedule:
       interval: "daily"
+    open-pull-requests-limit: 3
 
   # Nix flakes
   - package-ecosystem: "nix"

actions/validate/.github/dependabot.yml

@@ -13,6 +13,7 @@ updates:
       actions:
         patterns:
           - "*"
+    open-pull-requests-limit: 2
 
   # Rust/Cargo
   - package-ecosystem: "cargo"
@@ -22,24 +23,28 @@ updates:
     ignore:
       - dependency-name: "*"
         update-types: ["version-update:semver-patch"]
+    open-pull-requests-limit: 0
 
   # Elixir/Mix
   - package-ecosystem: "mix"
     directory: "/"
     schedule:
       interval: "weekly"
+    open-pull-requests-limit: 3
 
   # Node.js/npm
   - package-ecosystem: "npm"
     directory: "/"
     schedule:
       interval: "weekly"
+    open-pull-requests-limit: 3
 
   # Python/pip
   - package-ecosystem: "pip"
     directory: "/"
     schedule:
       interval: "weekly"
+    open-pull-requests-limit: 3
 
   # Nix flakes
   - package-ecosystem: "nix"

bindings/deno/.github/dependabot.yml

@@ -13,6 +13,7 @@ updates:
       actions:
         patterns:
           - "*"
+    open-pull-requests-limit: 2
 
   # Rust/Cargo
   - package-ecosystem: "cargo"
@@ -22,24 +23,28 @@ updates:
     ignore:
       - dependency-name: "*"
         update-types: ["version-update:semver-patch"]
+    open-pull-requests-limit: 0
 
   # Elixir/Mix
   - package-ecosystem: "mix"
     directory: "/"
     schedule:
       interval: "weekly"
+    open-pull-requests-limit: 3
 
   # Node.js/npm
   - package-ecosystem: "npm"
     directory: "/"
     schedule:
       interval: "weekly"
+    open-pull-requests-limit: 3
 
   # Python/pip
   - package-ecosystem: "pip"
     directory: "/"
     schedule:
       interval: "weekly"
+    open-pull-requests-limit: 3
 
   # Nix flakes
   - package-ecosystem: "nix"

bindings/haskell/.github/dependabot.yml

@@ -13,6 +13,7 @@ updates:
       actions:
         patterns:
           - "*"
+    open-pull-requests-limit: 2
 
   # Rust/Cargo
   - package-ecosystem: "cargo"
@@ -22,24 +23,28 @@ updates:
     ignore:
       - dependency-name: "*"
         update-types: ["version-update:semver-patch"]
+    open-pull-requests-limit: 0
 
   # Elixir/Mix
   - package-ecosystem: "mix"
     directory: "/"
     schedule:
       interval: "weekly"
+    open-pull-requests-limit: 3
 
   # Node.js/npm
   - package-ecosystem: "npm"
     directory: "/"
     schedule:
       interval: "weekly"
+    open-pull-requests-limit: 3
 
   # Python/pip
   - package-ecosystem: "pip"
     directory: "/"
     schedule:
       interval: "weekly"
+    open-pull-requests-limit: 3
 
   # Nix flakes
   - package-ecosystem: "nix"

bindings/rust/.github/dependabot.yml

@@ -13,6 +13,7 @@ updates:
       actions:
         patterns:
           - "*"
+    open-pull-requests-limit: 2
 
   # Rust/Cargo
   - package-ecosystem: "cargo"
@@ -22,24 +23,28 @@ updates:
     ignore:
       - dependency-name: "*"
         update-types: ["version-update:semver-patch"]
+    open-pull-requests-limit: 0
 
   # Elixir/Mix
   - package-ecosystem: "mix"
     directory: "/"
     schedule:
       interval: "weekly"
+    open-pull-requests-limit: 3
 
   # Node.js/npm
   - package-ecosystem: "npm"
     directory: "/"
     schedule:
       interval: "weekly"
+    open-pull-requests-limit: 3
 
   # Python/pip
   - package-ecosystem: "pip"
     directory: "/"
     schedule:
       interval: "weekly"
+    open-pull-requests-limit: 3
 
   # Nix flakes
   - package-ecosystem: "nix"

editors/vscode/.github/dependabot.yml

@@ -13,6 +13,7 @@ updates:
       actions:
         patterns:
           - "*"
+    open-pull-requests-limit: 2
 
   # Rust/Cargo
   - package-ecosystem: "cargo"
@@ -22,24 +23,28 @@ updates:
     ignore:
       - dependency-name: "*"
         update-types: ["version-update:semver-patch"]
+    open-pull-requests-limit: 0
 
   # Elixir/Mix
   - package-ecosystem: "mix"
     directory: "/"
     schedule:
       interval: "weekly"
+    open-pull-requests-limit: 3
 
   # Node.js/npm
   - package-ecosystem: "npm"
     directory: "/"
     schedule:
       interval: "weekly"
+    open-pull-requests-limit: 3
 
   # Python/pip
   - package-ecosystem: "pip"
     directory: "/"
     schedule:
       interval: "weekly"
+    open-pull-requests-limit: 3
 
   # Nix flakes
   - package-ecosystem: "nix"

pandoc/.github/dependabot.yml

@@ -13,6 +13,7 @@ updates:
       actions:
         patterns:
           - "*"
+    open-pull-requests-limit: 2
 
   # Rust/Cargo
   - package-ecosystem: "cargo"
@@ -22,24 +23,28 @@ updates:
     ignore:
       - dependency-name: "*"
         update-types: ["version-update:semver-patch"]
+    open-pull-requests-limit: 0
 
   # Elixir/Mix
   - package-ecosystem: "mix"
     directory: "/"
     schedule:
       interval: "weekly"
+    open-pull-requests-limit: 3
 
   # Node.js/npm
   - package-ecosystem: "npm"
     directory: "/"
     schedule:
       interval: "weekly"
+    open-pull-requests-limit: 3
 
   # Python/pip
   - package-ecosystem: "pip"
     directory: "/"
     schedule:
       interval: "weekly"
+    open-pull-requests-limit: 3
 
   # Nix flakes
   - package-ecosystem: "nix"