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

Author: renovate[bot]

.github/workflows/lint.yml

@@ -24,7 +24,7 @@ jobs:
       pull-requests: write
     steps:
       - name: Checkout source code
-        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5
+        uses: actions/checkout@1af3b93b6815bc44a9784bd300feb67ff0d1eeb3 # v6
         with:
           fetch-depth: 0
       - name: Set up Nix system
@@ -48,7 +48,7 @@ jobs:
       statuses: write
     steps:
       - name: Checkout source code
-        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5
+        uses: actions/checkout@1af3b93b6815bc44a9784bd300feb67ff0d1eeb3 # v6
         with:
           # Full git history is needed to get a proper
           # list of changed files within `super-linter`

.github/workflows/release.yml

@@ -20,7 +20,7 @@ jobs:
       contents: write
     steps:
       - name: Checkout source code
-        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5
+        uses: actions/checkout@1af3b93b6815bc44a9784bd300feb67ff0d1eeb3 # v6
         with:
           # Using this to pick up the latest tag.
           fetch-depth: 0
@@ -46,7 +46,7 @@ jobs:
     needs: [tag]
     steps:
       - name: Checkout source code
-        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5
+        uses: actions/checkout@1af3b93b6815bc44a9784bd300feb67ff0d1eeb3 # v6
         with:
           fetch-depth: 0
       - name: Set up Go

.github/workflows/test.yml

@@ -21,7 +21,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout source code
-        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5
+        uses: actions/checkout@1af3b93b6815bc44a9784bd300feb67ff0d1eeb3 # v6
       - name: Set up Nix system
         uses: ./.github/actions/nix-setup
         with: