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/_build_plugins.yml

@@ -15,7 +15,7 @@ jobs:
       CI: GitHub
       GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}  # Needed to get PR information, if any
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
 
       - name: Set up JDK 21
         uses: actions/setup-java@v5

.github/workflows/_codeql.yml

@@ -17,7 +17,7 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       - name: Set up JDK 21
         uses: actions/setup-java@v5

.github/workflows/_coverage.yml

@@ -16,7 +16,7 @@ jobs:
       SONAR_TOKEN: ${{ secrets.SONAR_TOKEN }}
       COVERALLS_REPO_TOKEN: ${{ secrets.COVERALLS_REPO_TOKEN }}
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         if: ${{ env.COVERALLS_REPO_TOKEN }}
 
       - name: Set up JDK 21

.github/workflows/_qodana.yml

@@ -12,7 +12,7 @@ jobs:
       GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}  # Needed to get PR information, if any
       QODANA_TOKEN: ${{ secrets.QODANA_TOKEN }}
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
 
       - name: Qodana Scan
         uses: JetBrains/[email protected]

.github/workflows/_tests.yml

@@ -25,7 +25,7 @@ jobs:
     env:
       PERL_CONFIGURATORS: LOCAL_PLENV
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
 
       - name: Set up JDK 21
         uses: actions/setup-java@v5
@@ -89,7 +89,7 @@ jobs:
     env:
       PERL_CONFIGURATORS: LOCAL_ASDF
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
 
       - name: Set up JDK 21
         uses: actions/setup-java@v5
@@ -148,7 +148,7 @@ jobs:
     env:
       PERL_CONFIGURATORS: LOCAL_PERLBREW
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
 
       - name: Set up JDK 21
         uses: actions/setup-java@v5
@@ -210,7 +210,7 @@ jobs:
     env:
       PERL_CONFIGURATORS: LOCAL_PERLBREW_WITH_LIBS
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
 
       - name: Set up JDK 21
         uses: actions/setup-java@v5
@@ -276,7 +276,7 @@ jobs:
       NO_FS_ROOTS_ACCESS_CHECK: true
 
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
 
       - name: Set up JDK 21
         uses: actions/setup-java@v5
@@ -330,7 +330,7 @@ jobs:
     env:
       PERL_CONFIGURATORS: DOCKER_SYSTEM
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
 
       - name: Set up JDK 21
         uses: actions/setup-java@v5
@@ -370,7 +370,7 @@ jobs:
     name: Light
     runs-on: ${{ inputs.os }}
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
 
       - name: Set up JDK 21
         uses: actions/setup-java@v5
@@ -410,7 +410,7 @@ jobs:
     name: Heavy
     runs-on: ${{ inputs.os }}
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
 
       - name: Set up JDK 21
         uses: actions/setup-java@v5

.github/workflows/push_and_pr.yml

@@ -30,7 +30,7 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       - name: Set up JDK 21
         uses: actions/setup-java@v5