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

Author: renovate[bot]

.github/workflows/auto-readme.yml

@@ -14,7 +14,7 @@ jobs:
   update:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v6
 
       - name: readme/update
         shell: bash

.github/workflows/code-checks.yml

@@ -12,7 +12,7 @@ jobs:
   lint:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v6
 
       - uses: hashicorp/setup-terraform@v1
         with:

.github/workflows/release.yml

@@ -14,7 +14,7 @@ jobs:
     name: Release
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v6
 
       - name: Run Semantic Release
         uses: cycjimmy/semantic-release-action@v2