include the node version in the cache key for better reproducibility

.github/workflows/auto-test.yml

@@ -41,7 +41,7 @@ jobs:
       id: node-modules-cache
       with:
         path: node_modules
-        key: node-modules-${{ runner.os }}-${{ hashFiles('**/package-lock.json') }}
+        key: node-modules-${{ runner.os }}-node${{ matrix.node }}-${{ hashFiles('**/package-lock.json') }}
 
     - name: Use Node.js ${{ matrix.node }}
       uses: actions/setup-node@395ad3262231945c25e8478fd5baf05154b1d79f # v6.1.0
@@ -104,7 +104,7 @@ jobs:
       id: node-modules-cache
       with:
         path: node_modules
-        key: node-modules-${{ runner.os }}-${{ hashFiles('**/package-lock.json') }}
+        key: node-modules-${{ runner.os }}-node${{ matrix.node }}-${{ hashFiles('**/package-lock.json') }}
 
     - name: Use Node.js 20
       uses: actions/setup-node@395ad3262231945c25e8478fd5baf05154b1d79f # v6.1.0
@@ -129,7 +129,7 @@ jobs:
       id: node-modules-cache
       with:
         path: node_modules
-        key: node-modules-${{ runner.os }}-${{ hashFiles('**/package-lock.json') }}
+        key: node-modules-${{ runner.os }}-node${{ matrix.node }}-${{ hashFiles('**/package-lock.json') }}
 
     - name: Setup Node.js
       uses: actions/setup-node@395ad3262231945c25e8478fd5baf05154b1d79f # v6.1.0