Update jest monorepo to v30

.github/workflows/check-dist.yml

@@ -16,12 +16,12 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v7
+      - uses: actions/checkout@v4
 
       - name: Set Node.js 20
-        uses: actions/setup-node@v6.4.0
+        uses: actions/setup-node@v4.4.0
         with:
-          node-version: 24.18.0
+          node-version: 20
 
       - name: Install dependencies
         run: yarn
@@ -40,7 +40,7 @@ jobs:
         id: diff
 
       # If index.js was different than expected, upload the expected version as an artifact
-      - uses: actions/upload-artifact@v7
+      - uses: actions/upload-artifact@v4
         if: ${{ failure() && steps.diff.conclusion == 'failure' }}
         with:
           name: dist

package.json

@@ -23,7 +23,7 @@
     "eslint-plugin-github": "^4.10.2",
     "eslint-plugin-jest": "^27.9.0",
     "eslint": "^8.57.1",
-    "jest": "^29.7.0",
+    "jest": "^30.4.2",
     "prettier": "^3.8.4",
     "typescript": "^5.9.3"
   }