Bump actions/checkout from 5 to 6 in the github-actions group

Bumps the github-actions group with 1 update: [actions/checkout](https://github.com/actions/checkout).


Updates `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
  dependency-group: github-actions
...

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

Author: dependabot[bot]

.github/workflows/msys2.yml

@@ -26,7 +26,7 @@ jobs:
 
     - uses: Jarod42/install-premake5@v6
 
-    - uses: actions/checkout@v5
+    - uses: actions/checkout@v6
       with:
         submodules: recursive
 

.github/workflows/msys2_release.yml

@@ -24,7 +24,7 @@ jobs:
 
     - uses: Jarod42/install-premake5@v6
 
-    - uses: actions/checkout@v5
+    - uses: actions/checkout@v6
       with:
         submodules: recursive
 

.github/workflows/ubuntu.yml

@@ -37,7 +37,7 @@ jobs:
       env:
           LLVM_ROOT: ${{steps.LLVM.outputs.LLVM_ROOT}}
 
-    - uses: actions/checkout@v5
+    - uses: actions/checkout@v6
       with:
         submodules: recursive
 
@@ -61,7 +61,7 @@ jobs:
 
     # Create compile_commands.json
     - name: checkout premake-export-compile-commands
-      uses: actions/checkout@v5
+      uses: actions/checkout@v6
       with:
           repository: Jarod42/premake-export-compile-commands
           path: premake-export-compile-commands