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

Author: renovate[bot]

.github/workflows/codeql.yml

@@ -46,7 +46,7 @@ jobs:
 
     steps:
     - name: Checkout repository
-      uses: actions/checkout@v5
+      uses: actions/checkout@v6
 
     # Initializes the CodeQL tools for scanning.
     - name: Initialize CodeQL

.github/workflows/release.yml

@@ -20,7 +20,7 @@ jobs:
           tagRegexGroup: 1 # Optional. Default is 1.
 
       - name: Checkout the repository
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       - uses: actions/setup-go@v6
         with:

.github/workflows/verify.yml

@@ -14,7 +14,7 @@ jobs:
       matrix:
         go-version: ['1.21']
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
 
       - name: Setup go
         uses: actions/setup-go@v6