Update actions/checkout action to v5 (#67)

Author: SuperSandroBot

.github/workflows/ci.yaml

@@ -21,7 +21,7 @@ jobs:
         target: [ "25.05", "unstable" ]
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
 
       - name: Find Version
         if: startsWith(github.ref, 'refs/tags/')
@@ -70,7 +70,7 @@ jobs:
     if: startsWith(github.ref, 'refs/tags/')
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
 
       - uses: actions/download-artifact@v5
         with:

.github/workflows/post-compare-link.yaml

@@ -12,7 +12,7 @@ jobs:
   post-compare-link:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
         with:
           fetch-depth: 0
       - uses: NuschtOS/flake-lock-compare-action@main

.github/workflows/template-sync.yaml

@@ -13,7 +13,7 @@ jobs:
     if: github.repository != 'NuschtOS/template'
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
         with:
           token: ${{ secrets.GH_TOKEN_FOR_UPDATES }}
       - uses: AndreasAugustin/actions-template-sync@v2