ci(deps): upgrade runners to macos-14 and add caching to emacs-builder building

.github/workflows/update-casks.yml

@@ -17,28 +17,46 @@ on:
 
 jobs:
   emacs-builder:
-    runs-on: macos-12
+    runs-on: "macos-14"
     steps:
+      - id: builder_ref
+        run: |
+          BUILDER_REF=v0.6.52
+          echo "ref=$BUILDER_REF=v0" >> "$GITHUB_OUTPUT"
+      - name: Cache emacs-builder (${{ runner.arch }})
+        id: cache
+        uses: actions/cache@v4
+        with:
+          path: bin/emacs-builder
+          key: emacs-builder-${{ runner.arch }}-${{ steps.builder_ref.outputs.sha }}-bin
       - name: Checkout build-emacs-for-macos repo
+        if: steps.cache.outputs.cache-hit != 'true'
         uses: actions/checkout@v4
         with:
           repository: jimeh/build-emacs-for-macos
-          ref: "v0.6.45"
-      - name: Install Go
+          ref: ${{ steps.builder_ref.outputs.sha }}
+          fetch-depth: 0
+      - name: Setup Go
+        if: steps.cache.outputs.cache-hit != 'true'
         uses: actions/setup-go@v5
         with:
-          go-version: "1.21"
+          go-version: "1.23"
       - name: Build emacs-builder tool
+        if: steps.cache.outputs.cache-hit != 'true'
         run: make build
+      - name: Ensure emacs-builder is executable
+        if: steps.cache.outputs.cache-hit != 'true'
+        run: chmod +x bin/emacs-builder
+      - run: bin/emacs-builder --version
       - name: Upload emacs-builder artifact
         uses: actions/upload-artifact@v4
         with:
-          name: emacs-builder
+          name: emacs-builder-${{ runner.arch }}
           path: bin/emacs-builder
           if-no-files-found: error
 
   live-check:
-    runs-on: macos-12
+    runs-on: "macos-14"
     outputs:
       tap_sha: ${{ steps.tap_sha.outputs.sha }}
     steps:
@@ -75,7 +93,7 @@ jobs:
           if-no-files-found: error
 
   update-casks:
-    runs-on: macos-12
+    runs-on: "macos-14"
     needs: [emacs-builder, live-check]
     steps:
       - name: Checkout tap repository
@@ -86,7 +104,7 @@ jobs:
       - name: Download pre-built emacs-builder artifact
         uses: actions/download-artifact@v4
         with:
-          name: emacs-builder
+          name: emacs-builder-${{ runner.arch }}
           path: bin
       - name: Ensure emacs-builder is executable
         run: chmod +x bin/emacs-builder
@@ -106,7 +124,7 @@ jobs:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
 
   update-meta:
-    runs-on: macos-12
+    runs-on: "macos-14"
     needs: [update-casks]
     permissions:
       contents: write