Update actions/checkout action to v5

Author: xdev-renovate

.github/workflows/broken-links.yml

@@ -12,7 +12,7 @@ jobs:
   link-checker:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
 
       - run: mv .github/.lycheeignore .lycheeignore
 

.github/workflows/sync-labels.yml

@@ -15,7 +15,7 @@ jobs:
   labels:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
         with:
           sparse-checkout: .github/labels.yml
 

.github/workflows/update-from-template.yml

@@ -35,7 +35,7 @@ jobs:
       update_branch_merged_commit: ${{ steps.manage-branches.outputs.update_branch_merged_commit }}
       create_update_branch_merged_pr: ${{ steps.manage-branches.outputs.create_update_branch_merged_pr }}
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
         with:
           # Required because otherwise there are always changes detected when executing diff/rev-list
           fetch-depth: 0
@@ -181,7 +181,7 @@ jobs:
     if: needs.update.outputs.create_update_branch_merged_pr == 1
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
         with:
           # Required because otherwise there are always changes detected when executing diff/rev-list
           fetch-depth: 0