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] <[email protected]>

Author: dependabot[bot]

.github/workflows/dc_integration_tests.yml

@@ -31,7 +31,7 @@ jobs:
     steps:
       - name: Check out Git repository
         id: checkout_repo
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
       - name: Setup Terraform
         id : setup_terraform
         uses: hashicorp/setup-terraform@v3

.github/workflows/integration_tests.yml

@@ -43,7 +43,7 @@ jobs:
     steps:
       - name: Check out Git repository
         id: checkout_repo
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
       - name: Setup Terraform
         id : setup_terraform
         uses: hashicorp/setup-terraform@v3

.github/workflows/links-watcher-cron.yml

@@ -14,7 +14,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: "Checkout source code"
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
       - name: Link Checker
         id: lychee
         uses: lycheeverse/[email protected]

.github/workflows/reuse-check.yml

@@ -8,6 +8,6 @@ jobs:
   compliance-check:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v5
+    - uses: actions/checkout@v6
     - name: REUSE Compliance Check
       uses: fsfe/reuse-action@v6

.github/workflows/scenario-test.yml

@@ -32,7 +32,7 @@ jobs:
     steps:
       - name: Check out Git repository
         id: checkout_repo
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
       - name: Setup Terraform
         id : setup_terraform
         uses: hashicorp/setup-terraform@v3
@@ -83,7 +83,7 @@ jobs:
           fi
       - name: Check out provider repository
         id: checkout_provider_repo
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           repository: SAP/terraform-provider-btp
 
@@ -106,7 +106,7 @@ jobs:
 
       - name: Check out Github repository
         id: checkout_github_repo
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       - name: Terraform Init
         id: init_terraform

.github/workflows/terraform_format_check.yml

@@ -15,7 +15,7 @@ jobs:
       runs-on: ubuntu-latest
       steps:
         - name: Checkout code
-          uses: actions/checkout@v5
+          uses: actions/checkout@v6
 
         - name: Setup Terraform
           uses: hashicorp/setup-terraform@v3

.github/workflows/terraform_validate.yml

@@ -15,7 +15,7 @@ jobs:
       runs-on: ubuntu-latest
       steps:
         - name: Checkout code
-          uses: actions/checkout@v5
+          uses: actions/checkout@v6
 
         - name: Setup Terraform
           uses: hashicorp/setup-terraform@v3

.github/workflows/uc_dev-test-prod.yml

@@ -46,7 +46,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - name: Set up Git repository
-      uses: actions/checkout@v5
+      uses: actions/checkout@v6
     - name: Terraform Run
       id: init
       shell: bash