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/build.yml

@@ -13,7 +13,7 @@ jobs:
         lazarus-versions: [stable] #[dist, stable, 2.0.12, 2.0.10, 2.0.8, 2.0.6]
 
     steps:
-    - uses: actions/checkout@v5
+    - uses: actions/checkout@v6
 
     - name: Install Lazarus
       uses: gcarreno/setup-lazarus@v3.2

.github/workflows/daily-build.yml

@@ -21,7 +21,7 @@ jobs:
     steps:
 
     - name: Check out the latest version
-      uses: actions/checkout@v5
+      uses: actions/checkout@v6
 
     - name: Install Lazarus
       uses: gcarreno/setup-lazarus@v3.2

.github/workflows/release.yml

@@ -14,7 +14,7 @@ jobs:
         lazarus-versions: [stable] #[dist, stable, 2.0.12, 2.0.10, 2.0.8, 2.0.6]
 
     steps:
-    - uses: actions/checkout@v5
+    - uses: actions/checkout@v6
 
     - name: Install Lazarus
       uses: gcarreno/setup-lazarus@v3.2