Add caching for node_modules and npm in workflow

.github/workflows/buildpr.yml

@@ -13,7 +13,7 @@ permissions:
 
 jobs:
   test-lint:
-    runs-on: ubuntu-latest
+    runs-on: blacksmith-4vcpu-ubuntu-2404
     steps:
       - name: Check out Git repository
         uses: actions/checkout@v1
@@ -23,9 +23,24 @@ jobs:
         with:
           node-version: 22.14.0
 
+      - name: Restore node_modules cache
+        id: node_modules-cache
+        uses: actions/cache/restore@v4
+        with:
+          path: node_modules
+          key: ${{ runner.os }}-node_modules-${{ hashFiles('package-lock.json') }}
+
       - name: Install dependencies
+        if: steps.node_modules-cache.outputs.cache-hit != 'true'
         run: npm install --force
 
+      - name: Save node_modules cache
+        if: steps.node_modules-cache.outputs.cache-hit != 'true'
+        uses: actions/cache/save@v4
+        with:
+          path: node_modules
+          key: ${{ runner.os }}-node_modules-${{ hashFiles('package-lock.json') }}
+
       - name: Run lint
         run: npm run lint
 
@@ -50,8 +65,23 @@ jobs:
         with:
           node-version: 22.14.0
 
+      - name: Restore node_modules cache
+        id: node_modules-cache
+        uses: actions/cache/restore@v4
+        with:
+          path: node_modules
+          key: ${{ runner.os }}-node_modules-${{ hashFiles('package-lock.json') }}
+
       - name: Install dependencies
+        if: steps.node_modules-cache.outputs.cache-hit != 'true'
         run: set CI=false && npm install --force
+
+      - name: Save node_modules cache
+        if: steps.node_modules-cache.outputs.cache-hit != 'true'
+        uses: actions/cache/save@v4
+        with:
+          path: node_modules
+          key: ${{ runner.os }}-node_modules-${{ hashFiles('package-lock.json') }}
 
       - name: Build/release Electron app
         uses: DeadCodeGames/action-electron-builder@908b7cf133f1e9bef6d538ab50ad2f7449538cc7