fix(ci): codeql-action v4.38.1 -> v4.38.0 SHA pin + dependabot hold (estate-wide startup_failure) (#401)

## Summary

Estate-wide incident: `github/codeql-action` **v4.38.1** fails GitHub
workflow **startup** on every repo that took it — CodeQL/Hypatia runs
die with `startup_failure`, zero jobs dispatched, no error text via the
API. Full investigation + evidence chain: **nexia-list#100.**

## Changes

- `codeql-action/*` refs (tag `@v4.38.1` or SHA `1c5b675…`) re-pinned to
the **v4.38.0** commit `b96794f015dfd88f77b49b1c93e0fa7110f94c63` (green
on deed-ecosystem; satisfies SHA-pin policy).
- `actions.lock` re-keyed where present (dependabot bumps `uses:`
without regenerating the lock → governance linter failure).
- `dependabot.yml`: **full hold** on `github/codeql-action` — scoped
`versions:` ignores do NOT hold on this path (nexia-list#101 re-raised
the bump in SHA form within an hour, copying the inline warning comment
verbatim while swapping the SHA).

Canonical fix at the estate origin: **standards#973**. Batch-mates:
nexia-list#100 (merged), hypatia#828, vexometer#90,
rsr-template-repo#191, empty-linter#99, modshells#119,
plasma-parser-writer#98, robodog-defensive-systems-lab#145,
twingate-helm-deploy#138, wokelang#147, laniakea#91, maa-framework#198,
methodologies#92, rpa-elysium#134, scripts#136,
universal-chat-extractor#165, verisimdb#280. Lift the hold once upstream
clears 4.38.1 or a canary verifies green.

Co-authored-by: arena-agent <arena-agent@users.noreply.github.com>

Author: hyperpolymath

.github/dependabot.yml

@@ -9,3 +9,10 @@ updates:
         patterns:
           - "*"
     open-pull-requests-limit: 2
+    ignore:
+      # HOLD: github/codeql-action at v4.38.0 (SHA-pinned). v4.38.1 fails
+      # GitHub workflow-startup validation estate-wide (nexia-list#100;
+      # SHA-form re-bump bypassed versions-scoped ignores - nexia-list#101).
+      # Hold until upstream clears 4.38.1 or a new release verifies green.
+      - dependency-name: "github/codeql-action"
+

.github/workflows/actions.lock

@@ -7,7 +7,7 @@ workflows:
         - 'actions/checkout@v7.0.1'
     '.github/workflows/codeql.yml':
         - 'actions/checkout@v7.0.1'
-        - 'github/codeql-action@v4.38.1'
+        - 'github/codeql-action@b96794f015dfd88f77b49b1c93e0fa7110f94c63'
     '.github/workflows/coq-build.yml':
         - 'actions/checkout@v7.0.1'
     '.github/workflows/ffi-seams.yml':
@@ -93,9 +93,9 @@ dependencies:
         commit: 'sha1-db488ddef3bf6cb639b32c2e9a7c0a7ea8271d28'
         owner_id: 9919
         repo_id: 259445878
-    'github/codeql-action@v4.38.1':
-        ref: 'v4.38.1'
-        commit: 'sha1-1c5b675653bb5c22dbe9b12b556ec555138e09fd'
+    'github/codeql-action@b96794f015dfd88f77b49b1c93e0fa7110f94c63':
+        ref: 'b96794f015dfd88f77b49b1c93e0fa7110f94c63'
+        commit: 'sha1-b96794f015dfd88f77b49b1c93e0fa7110f94c63'
         owner_id: 9919
         repo_id: 259445878
     'goto-bus-stop/setup-zig@abea47f85e598557f500fa1fd2ab7464fcb39406':

.github/workflows/codeql.yml

@@ -43,12 +43,12 @@ jobs:
         uses: actions/checkout@v7.0.1
 
       - name: Initialize CodeQL
-        uses: github/codeql-action/init@v4.38.1
+        uses: github/codeql-action/init@b96794f015dfd88f77b49b1c93e0fa7110f94c63 # v4.38.0 (4.38.1 blocked estate-wide; nexia-list#100)
         with:
           languages: ${{ matrix.language }}
           build-mode: ${{ matrix.build-mode }}
 
       - name: Perform CodeQL Analysis
-        uses: github/codeql-action/analyze@v4.38.1
+        uses: github/codeql-action/analyze@b96794f015dfd88f77b49b1c93e0fa7110f94c63 # v4.38.0 (4.38.1 blocked estate-wide; nexia-list#100)
         with:
           category: "/language:${{ matrix.language }}"