Bump actions/checkout from 5 to 6

Bumps [actions/checkout](https://github.com/actions/checkout) from 5 to 6.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](actions/checkout@v5...v6)

---
updated-dependencies:
- dependency-name: actions/checkout
  dependency-version: '6'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

.github/workflows/ai-docker-image.yml

@@ -9,7 +9,7 @@ jobs:
       working-directory: ./ai
       git_hash: $(git rev-parse --short "$GITHUB_SHA")
     steps:
-    - uses: actions/checkout@v5
+    - uses: actions/checkout@v6
     - name: Build the AI Docker image
       run: docker build . --file Dockerfile --tag ai:${{ env.git_hash }}
       working-directory: ${{ env.working-directory}}

.github/workflows/api-docker-deploy.yml

@@ -9,7 +9,7 @@ jobs:
       working-directory: ./api
       git_hash: $(git rev-parse --short "$GITHUB_SHA")
     steps:
-    - uses: actions/checkout@v5
+    - uses: actions/checkout@v6
     - name: Build the API Docker image
       run: docker build . --file Dockerfile --tag dnprogramming/api:latest
       working-directory: ${{ env.working-directory}}

.github/workflows/api-docker-image.yml

@@ -9,7 +9,7 @@ jobs:
       working-directory: ./api
       git_hash: $(git rev-parse --short "$GITHUB_SHA")
     steps:
-    - uses: actions/checkout@v5
+    - uses: actions/checkout@v6
     - name: Build the API Docker image
       run: docker build . --file Dockerfile --tag api:${{ env.git_hash }}
       working-directory: ${{ env.working-directory}}

.github/workflows/api-dotnet-testing.yml

@@ -12,7 +12,7 @@ jobs:
     env:
       working-directory: ./api
     steps:
-    - uses: actions/checkout@v5
+    - uses: actions/checkout@v6
     - name: Setup .NET
       uses: actions/setup-dotnet@v5
       with:

.github/workflows/node-testing.yml

@@ -20,7 +20,7 @@ jobs:
         # See supported Node.js release schedule at https://nodejs.org/en/about/releases/
 
     steps:
-    - uses: actions/checkout@v5
+    - uses: actions/checkout@v6
     - name: Use Node.js
       uses: actions/setup-node@v6
       with:

.github/workflows/python-lint.yml

@@ -11,7 +11,7 @@ jobs:
       matrix:
         python-version: ["3.12"]
     steps:
-    - uses: actions/checkout@v5
+    - uses: actions/checkout@v6
     - name: Set up Python ${{ matrix.python-version }}
       uses: actions/setup-python@v6
       with:

.github/workflows/semgrep.yml

@@ -20,5 +20,5 @@ jobs:
     container:
       image: returntocorp/semgrep
     steps:
-    - uses: actions/checkout@v5
+    - uses: actions/checkout@v6
     - run: semgrep ci

.github/workflows/sonarscan.yml

@@ -9,7 +9,7 @@ jobs:
     name: Build and analyze
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         with:
           fetch-depth: 0  # Shallow clones should be disabled for a better relevancy of analysis
       - name: SonarCloud Scan

.github/workflows/webapp-docker-image.yml

@@ -9,7 +9,7 @@ jobs:
       working-directory: ./webapp
       git_hash: $(git rev-parse --short "$GITHUB_SHA")
     steps:
-    - uses: actions/checkout@v5
+    - uses: actions/checkout@v6
     - name: Build the Web Application Docker image
       run: docker build . --file Dockerfile --tag webapp:${{ env.git_hash }}
       working-directory: ${{ env.working-directory}}