update github workflow versions for node v20

correcting warnings in github:
https://github.com/GoogleCloudPlatform/gcpdiag/actions/runs/8193196244

Change-Id: I0d152a78aa18a245b647f17f3b5711799a844fc0
GitOrigin-RevId: ae066e4

.github/workflows/code-analysis.yml

@@ -10,16 +10,16 @@ jobs:
     timeout-minutes: 10
     steps:
     - name: Checkout repository
-      uses: actions/checkout@v2
+      uses: actions/checkout@v4
 
     - name: Set up Python
       id: setup-python
-      uses: actions/setup-python@v2
+      uses: actions/setup-python@v5
       with:
         python-version: 3.9
 
     - name: Set up Terraform
-      uses: hashicorp/setup-terraform@3d8debd658c92063839bc97da5c2427100420dec
+      uses: hashicorp/setup-terraform@v3
       # v1.3.2
       with:
         terraform_version: 1.0.6
@@ -29,7 +29,7 @@ jobs:
 
     - name: Restore pipenv cache
       id: cache-pipenv
-      uses: actions/cache@v2
+      uses: actions/cache@v4
       with:
         path: ./.venv
         key: codeanaysis-${{ runner.os }}-python-${{ steps.setup-python.outputs.python-version }}-pipenv-${{ hashFiles('Pipfile.lock') }}

.github/workflows/gh-pages.yml

@@ -10,7 +10,7 @@ jobs:
   deploy:
     runs-on: ubuntu-20.04
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v4
       with:
         submodules: true
         fetch-depth: 0

.github/workflows/gke-eol.yml

@@ -10,7 +10,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - name: Checkout repository
-      uses: actions/checkout@v2
+      uses: actions/checkout@v4
       with:
         fetch-depth: 0  # Ensure all history is fetched for accurate diff
 

.github/workflows/test.yml

@@ -10,11 +10,11 @@ jobs:
     timeout-minutes: 10
     steps:
     - name: Checkout repository
-      uses: actions/checkout@v2
+      uses: actions/checkout@v4
 
     - name: Set up Python
       id: setup-python
-      uses: actions/setup-python@v2
+      uses: actions/setup-python@v5
       with:
         python-version: 3.9
 
@@ -23,7 +23,7 @@ jobs:
 
     - name: Restore pipenv cache
       id: cache-pipenv
-      uses: actions/cache@v2
+      uses: actions/cache@v4
       with:
         path: ./.venv
         key: test-${{ runner.os }}-python-${{ steps.setup-python.outputs.python-version }}-pipenv-${{ hashFiles('Pipfile.lock') }}