Update GitHub actions

Author: renovate[bot]

.github/workflows/check_libs.yaml

@@ -28,7 +28,7 @@ jobs:
     if: ${{ github.event.pull_request.head.repo.full_name == 'canonical/mysql-router-operators' }}
     steps:
       - name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           fetch-depth: 0
       - name: Check libs

.github/workflows/ci.yaml

@@ -33,7 +33,7 @@ jobs:
     timeout-minutes: 5
     steps:
       - name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
       - name: Install terraform
         run: |
           sudo snap install terraform --classic
@@ -54,11 +54,11 @@ jobs:
           - kubernetes
           - machines
     name: Unit test | ${{ matrix.path }}
-    runs-on: ubuntu-22.04  # TODO: use ubuntu-latest after fixing pathlib issue on python 3.12
+    runs-on: ubuntu-24.04  # TODO: use ubuntu-latest after fixing pathlib issue on python 3.12
     timeout-minutes: 20
     steps:
       - name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
       - name: Install tox & poetry
         run: |
           pipx install tox

.github/workflows/integration_test_charm.yaml

@@ -20,7 +20,7 @@ jobs:
     timeout-minutes: 5
     steps:
       - name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
       - name: Set up environment
         run: |
           sudo snap install charmcraft --classic
@@ -103,7 +103,7 @@ jobs:
           df --human-readable
       - name: Checkout
         timeout-minutes: 3
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
       - name: Set up environment
         timeout-minutes: 5
         run: sudo snap install charmcraft --classic

.github/workflows/integration_test_charms.yaml

@@ -52,7 +52,7 @@ jobs:
       # git push origin gh-pages-beta
       # )
       - name: Checkout GitHub pages branch
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           ref: gh-pages-beta
           path: repo/

.github/workflows/tiobe_scan.yaml

@@ -18,7 +18,7 @@ jobs:
     timeout-minutes: 60
     steps:
       - name: Checkout the project
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       - name: Install system dependencies
         run: sudo apt-get update && sudo apt-get install -y python3-venv