chore(deps): update actions/checkout action to v6

.github/workflows/ci.yml

@@ -14,7 +14,7 @@ jobs:
       COVER: true
     steps:
     - name: Check out code
-      uses: actions/checkout@v5
+      uses: actions/checkout@v6
 
     - name: Set up Go
       uses: actions/setup-go@v6
@@ -60,7 +60,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - name: Check out code
-      uses: actions/checkout@v5
+      uses: actions/checkout@v6
 
     - name: Set up QEMU
       uses: docker/setup-qemu-action@v3

.github/workflows/codeql.yml

@@ -32,7 +32,7 @@ jobs:
 
     steps:
     - name: Checkout repository
-      uses: actions/checkout@v5
+      uses: actions/checkout@v6
 
     # Initializes the CodeQL tools for scanning.
     - name: Initialize CodeQL

.github/workflows/create-release.yml

@@ -17,7 +17,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - name: Check out code
-      uses: actions/checkout@v5
+      uses: actions/checkout@v6
       with:
         ref: master
         fetch-depth: 0

.github/workflows/docs.yml

@@ -14,7 +14,7 @@ jobs:
     if: github.event_name == 'pull_request'
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
 
       - name: Setup Pages
         id: pages
@@ -35,7 +35,7 @@ jobs:
     if: github.event_name == 'push' || github.event_name == 'workflow_dispatch'
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
 
       - uses: actions/setup-node@v6
         with:

.github/workflows/nightly.yml

@@ -12,7 +12,7 @@ jobs:
     if: github.repository == 'oauth2-proxy/oauth2-proxy'
     steps:
     - name: Check out code
-      uses: actions/checkout@v5
+      uses: actions/checkout@v6
       with:
         ref: master
         fetch-depth: 0

.github/workflows/publish-release.yml

@@ -20,7 +20,7 @@ jobs:
       tag: ${{ steps.tag.outputs.version }}
     steps:
     - name: Check out code
-      uses: actions/checkout@v5
+      uses: actions/checkout@v6
       with:
         ref: ${{ github.event.pull_request.merge_commit_sha }}
         fetch-depth: 0
@@ -100,7 +100,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - name: Check out code
-      uses: actions/checkout@v5
+      uses: actions/checkout@v6
       with:
         ref: ${{ needs.publish.outputs.tag }}
         fetch-depth: 0