ci: add autoinstall prepare scripts

Signed-off-by: Rifa Achrinza <25147899+achrinza@users.noreply.github.com>

Author: achrinza

.github/workflows/ci.yaml

@@ -135,11 +135,8 @@ jobs:
       uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
       with:
         fetch-depth: 1
-    - name: Setup Node.js
-      uses: actions/setup-node@39370e3970a6d050c480ffad4ff0ed4d3fdee5af # v4.1.0
-      with:
-        node-version: ${{ matrix.node-version }}
-        cache: npm
+        submodules: true
+        path: loopback-ibmdb
     - name: Bootstrap dependencies
       run: npm ci --ignore-scripts
     - name: Package for cross-testing
@@ -154,6 +151,14 @@ jobs:
           https://github.com/loopbackio/loopback-connector-db2.git
         cd loopback-connector-db2
         git submodule update --init --depth=1
+    - name: Setup Node.js
+      uses: actions/setup-node@39370e3970a6d050c480ffad4ff0ed4d3fdee5af # v4.1.0
+      with:
+        node-version: ${{ matrix.node-version }}
+        cache: npm
+        cache-dependency-path: |
+          ./loopback-connector-db2/package-lock.json
+          ./loopback-ibmdb/package-lock.json
     - name: Setup and run test harness
       env:
         DB2_VERSION: ${{ matrix.db2-version }}