build(deps): 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] <support@github.com>

Author: dependabot[bot]

.github/workflows/bump_bbs_protos.yml

@@ -14,12 +14,12 @@ jobs:
     steps:
       - uses: hmarr/debug-action@v3
       - name: Checkout ccng
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           path: cloud_controller_ng
 
       - name: Clone bbs repository
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           repository: cloudfoundry/bbs
           path: bbs

.github/workflows/codeql.yml

@@ -59,7 +59,7 @@ jobs:
         # your codebase is analyzed, see https://docs.github.com/en/code-security/code-scanning/creating-an-advanced-setup-for-code-scanning/codeql-code-scanning-for-compiled-languages
     steps:
     - name: Checkout repository
-      uses: actions/checkout@v5
+      uses: actions/checkout@v6
 
     # Add any setup steps before running the `github/codeql-action/init` action.
     # This includes steps like installing compilers or runtimes (`actions/setup-node`

.github/workflows/docs_test.yml

@@ -24,7 +24,7 @@ jobs:
     timeout-minutes: 60
     steps:
       - uses: hmarr/debug-action@v3
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: Prepare setup
         run: cp -a .ruby-version docs/v3/.ruby-version
       - uses: ./.github/workflows/composite/setup

.github/workflows/unit_tests.yml

@@ -25,7 +25,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - uses: hmarr/debug-action@v3
-    - uses: actions/checkout@v5
+    - uses: actions/checkout@v6
     - uses: ./.github/workflows/composite/setup
     - name: Run Rubocop
       run: bundle exec rake rubocop
@@ -59,7 +59,7 @@ jobs:
           - 5432:5432
     steps:
     - uses: hmarr/debug-action@v3
-    - uses: actions/checkout@v5
+    - uses: actions/checkout@v6
     - uses: ./.github/workflows/composite/setup
     - name: Run tests
       run: DB=postgres POSTGRES_CONNECTION_PREFIX="postgres://postgres:rootpassword@localhost:5432" bundle exec rake spec
@@ -94,7 +94,7 @@ jobs:
           - 3306:3306
     steps:
     - uses: hmarr/debug-action@v3
-    - uses: actions/checkout@v5
+    - uses: actions/checkout@v6
     - uses: ./.github/workflows/composite/setup
     - name: Run tests
       run: DB=mysql MYSQL_CONNECTION_PREFIX="mysql2://root:password@127.0.0.1:3306" bundle exec rake spec

.github/workflows/unit_tests_backwards_compatibility.yml

@@ -50,7 +50,7 @@ jobs:
     steps:
       - uses: hmarr/debug-action@v3
       - name: Checkout code to run the db migration with
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           ref: ${{ (
               github.event_name == 'workflow_dispatch'
@@ -67,7 +67,7 @@ jobs:
       - name: Migrate Database
         run: DB=postgres POSTGRES_CONNECTION_PREFIX="postgres://postgres:rootpassword@localhost:5432" bundle exec rake db:parallel:recreate db:parallel:migrate
       - name: Checkout code to run the unit tests with
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           ref: ${{ (
               github.event_name == 'workflow_dispatch'
@@ -104,7 +104,7 @@ jobs:
     steps:
       - uses: hmarr/debug-action@v3
       - name: Checkout code to run the db migration with
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           ref: ${{ (
             github.event_name == 'workflow_dispatch'
@@ -121,7 +121,7 @@ jobs:
       - name: Migrate Database
         run: DB=mysql MYSQL_CONNECTION_PREFIX="mysql2://root:password@127.0.0.1:3306" bundle exec rake db:parallel:recreate db:parallel:migrate
       - name: Checkout code to run the unit tests with
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           ref: ${{ (
             github.event_name == 'workflow_dispatch'