Fix outdated GitHub workflows

Applied recommandations from https://rhysd.github.io/actionlint/

Author: ValentinFrancois

.github/workflows/_code_checks.yml

@@ -21,17 +21,17 @@ jobs:
 
     steps:
     - name: checkout current commit
-      uses: actions/checkout@v2
+      uses: actions/checkout@v4
       if: ${{ inputs.ref == 'default' }}
 
     - name: checkout main
-      uses: actions/checkout@v2
+      uses: actions/checkout@v4
       with:
         ref: ${{ inputs.ref }}
       if: ${{ inputs.ref != 'default' }}
 
     - name: install python
-      uses: actions/setup-python@v2
+      uses: actions/setup-python@v5
       with:
         python-version: ${{ matrix.python-version }}
 
@@ -48,9 +48,9 @@ jobs:
       run: make test
 
     - name: codeql_init
-      uses: github/codeql-action/init@v1
+      uses: github/codeql-action/init@v3
       with:
         languages: 'python'
 
     - name: codeql_analyze
-      uses: github/codeql-action/analyze@v1
+      uses: github/codeql-action/analyze@v3

.github/workflows/check_pr_code.yml

@@ -14,7 +14,7 @@ jobs:
       n_commits: ${{ steps.count_commits.outputs.n_commits }}
     steps:
       - name: checkout current branch
-        uses: actions/checkout@v2
+        uses: actions/checkout@v4
         with:
           fetch-depth: 0
 
@@ -23,7 +23,7 @@ jobs:
         run: |
           git fetch
           N_COMMITS=$(git rev-list origin/main.. --count)
-          echo "::set-output name=n_commits::${N_COMMITS}"
+          echo "n_commits=${N_COMMITS}" >> $GITHUB_OUTPUT
 
   add_empty_commit_if_only_one:
     needs: count_commits
@@ -33,7 +33,7 @@ jobs:
     steps:
 
       - name: checkout current branch
-        uses: actions/checkout@v2
+        uses: actions/checkout@v4
         with:
           repository: ${{ github.event.pull_request.head.repo.full_name }}
           ref: ${{ github.event.pull_request.head.ref }}

.github/workflows/release.yml

@@ -19,10 +19,10 @@ jobs:
       startsWith(github.event.head_commit.message, '[PATCH]')
     steps:
 
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v4
 
     - name: Set up Python
-      uses: actions/setup-python@v2
+      uses: actions/setup-python@v5
       with:
         python-version: '3.8'
 
@@ -71,7 +71,7 @@ jobs:
     steps:
 
       - name: Checkout main
-        uses: actions/checkout@v2
+        uses: actions/checkout@v4
         with:
           ref: main
           fetch-depth: 0  # fetches entire history for all branches and tags
@@ -99,12 +99,12 @@ jobs:
     steps:
 
       - name: Checkout main
-        uses: actions/checkout@v2
+        uses: actions/checkout@v4
         with:
           ref: main
 
       - name: Set up Python
-        uses: actions/setup-python@v2
+        uses: actions/setup-python@v5
         with:
           python-version: '3.8'