chore(ci): remove pinned actions & pkg versions (#3576)

Author: dreamorosi

.github/workflows/bootstrap_region.yml

@@ -34,14 +34,23 @@ permissions:
   contents: read
 
 jobs:
-  cdk:
-    name: Install CDK
+  bootstrap:
+    name: Bootstrap Region
     runs-on: ubuntu-latest
     permissions:
-      contents: write
       id-token: write
     environment: layer-${{ inputs.environment }}
     steps:
+      - name: checkout
+        uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683  # v4.2.2
+        with:
+          ref: ${{ github.sha }}
+      - name: Setup Node.js
+        uses: actions/setup-node@39370e3970a6d050c480ffad4ff0ed4d3fdee5af # v4.1.0
+        with:
+          node-version: "22"
+      - name: Setup dependencies
+        uses: aws-powertools/actions/.github/actions/cached-node-modules@29979bc5339bf54f76a11ac36ff67701986bb0f0
       - id: credentials
         name: AWS Credentials
         uses: aws-actions/configure-aws-credentials@e3dd6a429d7300a6a4c196c26e071d42e0343502
@@ -53,11 +62,6 @@ jobs:
         name: Create Workdir
         run: |
           mkdir -p build/project
-      - id: cdk-install
-        name: Install CDK
-        working-directory: build
-        run: |
-          npm i aws-cdk@2.178.0
       - id: cdk-project
         name: CDK Project
         working-directory: build/project
@@ -68,8 +72,8 @@ jobs:
   copy_layers:
     name: Copy Layers
     runs-on: ubuntu-latest
+    needs: bootstrap
     permissions:
-      contents: write
       id-token: write
     environment: layer-${{ inputs.environment }}
     steps:
@@ -90,7 +94,7 @@ jobs:
         run: go env
       - id: go-install-pkg
         name: Install
-        run: go install github.com/aws-powertools/actions/layer-balancer/cmd/balance@latest
+        run: go install github.com/aws-powertools/actions/layer-balancer/cmd/balance@@29979bc5339bf54f76a11ac36ff67701986bb0f0
       - id: run-balance
         name: Run Balance
-        run: balance -read-region us-east-1 -write-region ${{ inputs.region }} -write-role ${{ secrets.BALANCE_ROLE_ARN }} -layer-name AWSLambdaPowertoolsTypeScriptV2 -dry-run=false
+        run: balance -read-region us-east-1 -write-region ${{ inputs.region }} -write-role ${{ secrets.BALANCE_ROLE_ARN }} -layer-name AWSLambdaPowertoolsTypeScriptV2 -dry-run=false