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

.github/workflows/lint.yml

@@ -20,7 +20,7 @@ jobs:
         with:
           go-version: ${{matrix.go-version}}
 
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
 
       - name: golangci-lint
         uses: golangci/golangci-lint-action@v9
@@ -34,7 +34,7 @@ jobs:
         with:
           python-version: 3.14
 
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
 
       - name: install check-jsonschema
         run: python -m pip install 'check-jsonschema==0.27.3'

.github/workflows/release-nightly.yml

@@ -9,7 +9,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           fetch-depth: 0
 

.github/workflows/release.yml

@@ -10,7 +10,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           fetch-depth: 0
 

.github/workflows/test.yml

@@ -24,7 +24,7 @@ jobs:
         id: go
 
       - name: Check out code into the Go module directory
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       - name: Download Go modules
         run: go mod download