Bump actions/checkout from 5.0.0 to 6.0.0

Bumps [actions/checkout](https://github.com/actions/checkout) from 5.0.0 to 6.0.0.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](actions/checkout@v5...v6.0.0)

---
updated-dependencies:
- dependency-name: actions/checkout
  dependency-version: 6.0.0
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

.github/workflows/reusable-docker-build-ssh.yml

@@ -98,7 +98,7 @@ jobs:
 
       # https://github.com/actions/checkout
       - name: Checkout codebase
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6.0.0
 
       # https://github.com/docker/setup-buildx-action
       - name: Setup Docker Buildx

.github/workflows/reusable-docker-build.yml

@@ -94,7 +94,7 @@ jobs:
 
       # https://github.com/actions/checkout
       - name: Checkout codebase
-        uses: actions/checkout@v5.0.0
+        uses: actions/checkout@v6.0.0
 
       # https://github.com/docker/setup-buildx-action
       - name: Setup Docker Buildx

.github/workflows/reusable-lambda-deploy.yml

@@ -39,7 +39,7 @@ jobs:
         name: Deploy Lambda Function
         runs-on: ubuntu-latest
         steps:
-        - uses: actions/checkout@v5.0.0
+        - uses: actions/checkout@v6.0.0
 
         - name: Make artifact directory
           run: mkdir -p ./artifacts/${{ github.repository }}/packages

.github/workflows/reuseable-crlf-check.yml

@@ -10,7 +10,7 @@ jobs:
 
     steps:
       - name: Checkout repository contents
-        uses: actions/checkout@v5.0.0
+        uses: actions/checkout@v6.0.0
 
       - name: Use action to check for CRLF endings
         uses: erclu/check-crlf@master