chore!: migrate to ESM, adopt node24 runtime, roll up open Dependabot PRs

.github/workflows/check-dist.yml

@@ -37,9 +37,16 @@ jobs:
 
       - name: Compare the expected and actual dist/ directories
         run: |
-          if [ "$(git diff --ignore-space-at-eol dist/ | wc -l)" -gt "0" ]; then
+          # `git diff` alone can't see files the build newly added, so check for
+          # untracked files in dist/ too.
+          untracked="$(git ls-files --others --exclude-standard -- dist/)"
+          changed="$(git diff --ignore-space-at-eol -- dist/)"
+          if [ -n "$untracked" ] || [ -n "$changed" ]; then
             echo "Detected uncommitted changes after build.  See status below:"
-            git diff
+            if [ -n "$untracked" ]; then
+              printf 'Untracked files in dist/:\n%s\n' "$untracked"
+            fi
+            git diff -- dist/
             exit 1
           fi
         id: diff

.github/workflows/test.yml

@@ -12,6 +12,13 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - uses: actions/checkout@v7
+
+    - name: Setup Node.js
+      uses: actions/setup-node@v7.0.0
+      with:
+        node-version-file: package.json
+        cache: npm
+
     - run: npm ci
     - run: npm test
 

action.yml

@@ -49,5 +49,5 @@ outputs:
     description: JSON array of all found projects (`project` object) that implement a `package` command
 
 runs:
-  using: "node20"
+  using: "node24"
   main: "dist/index.js"

determine-skips.test.js

@@ -1,4 +1,6 @@
-const { determineSkips } = require("./find-python-projects.js");
+import { describe, it, expect } from "@jest/globals";
+
+import { determineSkips } from "./find-python-projects.js";
 
 describe("determineSkips", () => {
   const GLOBAL_KEY = "__GLOBAL__";