fix: CDK version

Author: ServerlessLife

.github/workflows/common-test.yml

@@ -72,6 +72,10 @@ jobs:
       - name: Deploy
         run: npm run deploy
         working-directory: test/cdk-basic
+      - name: Install previous CDK version
+        run: |
+          rm package-lock.json
+          npm i aws-cdk@2.1124.1 aws-cdk-lib@2.257.0 constructs@10.6.0 -w test/cdk-basic
       - name: Test
         run: npx vitest --retry 2 test/cdk-basic.test.ts
       - name: Test - observability mode
@@ -81,6 +85,18 @@ jobs:
         working-directory: test/cdk-basic
       - name: Test YAML
         run: npx vitest --retry 2 test/cdk-basic.test.ts
+      # Repeat the tests with the previous version of aws-cdk-lib
+      # to validate the code injection into aws-cdk-lib works with both versions
+      # Remove package-lock.json first: it still contains entries for the workspaces removed
+      # by prepareForTest.js, which confuses npm and leaves aws-cdk-lib uninstalled
+      # - name: Install previous CDK version
+      #   run: |
+      #     rm package-lock.json
+      #     npm i aws-cdk@2.1124.1 aws-cdk-lib@2.257.0 constructs@10.6.0 -w test/cdk-basic
+      # - name: Test - previous CDK version
+      #   run: npx vitest --retry 2 test/cdk-basic.test.ts
+      # - name: Test - previous CDK version - observability mode
+      #   run: OBSERVABLE_MODE=true npx vitest --retry 2 test/cdk-basic.test.ts
 
   test-cdk-esm:
     runs-on: ubuntu-latest