chore(deps): update actions/checkout action to v5

Author: renovate[bot]

.github/workflows/release.yaml

@@ -16,7 +16,7 @@ jobs:
       new_release_git_tag: ${{ steps.release.outputs.new_release_git_tag }}
     steps:
       - name: Checkout
-        uses: actions/checkout@08eba0b27e820071cde6df949e0beb9ba4906955 # v4.3.0
+        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
         with:
           fetch-depth: 0
       - name: Set up Go

.github/workflows/validate_docs.yaml

@@ -10,7 +10,7 @@ jobs:
     name: Validate CLI Docs
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@08eba0b27e820071cde6df949e0beb9ba4906955 # v4.3.0
+      - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
         with:
           fetch-depth: 1