Dynamically fetch the npm cache directory

.github/workflows/build.yaml

@@ -219,12 +219,17 @@ jobs:
           cache: "npm"
           cache-dependency-path: "SPT/Build/server/project/package.json"
 
+      - name: Get npm cache directory
+        id: npm-cache-dir
+        shell: pwsh
+        run: echo "dir=$(npm config get cache)" >> ${env:GITHUB_OUTPUT}
+
       - name: Check NPM Cache
         id: cache-check
         uses: actions/cache@v4
         with:
-          path: ~/.npm
-          key: ${{ runner.os }}-node-${{ hashFiles('SPT/Build/server/project/package.json') }}
+          path: ${{ steps.npm-cache-dir.outputs.dir }}
+          key: ${{ runner.os }}-node-${{ hashFiles('**/package.json') }}
           restore-keys: |
             ${{ runner.os }}-node-