Bump actions/checkout from 5 to 6

.github/workflows/cd_release.yml

@@ -18,7 +18,7 @@ jobs:
 
     steps:
     - name: Checkout repository
-      uses: actions/checkout@v5
+      uses: actions/checkout@v6
       with:
         fetch-depth: 0
 

.github/workflows/ci_automerge_dependabot.yml

@@ -13,7 +13,7 @@ jobs:
 
     steps:
     - name: Checkout repository
-      uses: actions/checkout@v5
+      uses: actions/checkout@v6
       with:
         fetch-depth: 0
         ref: ${{ github.event.pull_request.head.ref }}

.github/workflows/ci_dependabot.yml

@@ -19,7 +19,7 @@ jobs:
 
     steps:
     - name: Checkout repository
-      uses: actions/checkout@v5
+      uses: actions/checkout@v6
       with:
         ref: main
 

.github/workflows/ci_tests.yml

@@ -15,7 +15,7 @@ jobs:
     name: Reset test branches
     steps:
     - name: Checkout action repo
-      uses: actions/checkout@v5
+      uses: actions/checkout@v6
       with:
         token: ${{ secrets.CI_RESET_TEST_BRANCHES }}
         fetch-depth: 0
@@ -55,7 +55,7 @@ jobs:
 
     steps:
     - name: Use local action (checkout)
-      uses: actions/checkout@v5
+      uses: actions/checkout@v6
 
     - name: Perform changes
       run: ./ci.sh ${TEST_TAG}
@@ -94,7 +94,7 @@ jobs:
     name: Testing - protected
     steps:
     - name: Use local action (checkout)
-      uses: actions/checkout@v5
+      uses: actions/checkout@v6
 
     - name: Perform changes
       run: ./ci.sh
@@ -122,7 +122,7 @@ jobs:
     name: Testing - protected (--force)
     steps:
     - name: Use local action (checkout)
-      uses: actions/checkout@v5
+      uses: actions/checkout@v6
 
     - name: Perform non-fast-forwardable changes
       run: |
@@ -166,7 +166,7 @@ jobs:
     name: Testing - Setting `branch` and `ref` fails
     steps:
     - name: Use local action (checkout)
-      uses: actions/checkout@v5
+      uses: actions/checkout@v6
 
     - name: Push setting both `branch` and `ref` (should fail)
       id: push_branch_ref
@@ -190,7 +190,7 @@ jobs:
     name: Testing - Fail for non-existant branch
     steps:
     - name: Use local action (checkout)
-      uses: actions/checkout@v5
+      uses: actions/checkout@v6
 
     - name: Push to non-existant branch (should fail)
       id: push_non_existant
@@ -213,7 +213,7 @@ jobs:
     name: Testing - Using `path`
     steps:
     - name: Use local action (checkout)
-      uses: actions/checkout@v5
+      uses: actions/checkout@v6
       with:
         path: sub_folder
 
@@ -233,7 +233,7 @@ jobs:
     name: Testing - Default for `acceptable_conclusions` with skipped checks
     steps:
       - name: Use local action (checkout)
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       - name: Perform changes
         run: ./ci.sh
@@ -262,7 +262,7 @@ jobs:
     name: Testing - Using `fail_fast`
     steps:
       - name: Use local action (checkout)
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       - name: Perform changes
         run: ./ci.sh
@@ -290,7 +290,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - name: Checkout repository
-      uses: actions/checkout@v5
+      uses: actions/checkout@v6
 
     - name: Set up Python 3.11
       uses: actions/setup-python@v6
@@ -318,7 +318,7 @@ jobs:
 
     steps:
     - name: Checkout repository
-      uses: actions/checkout@v5
+      uses: actions/checkout@v6
       with:
         fetch-depth: 2
 

.github/workflows/ci_updated_main.yml

@@ -18,7 +18,7 @@ jobs:
 
     steps:
     - name: Checkout repository
-      uses: actions/checkout@v5
+      uses: actions/checkout@v6
       with:
         ref: ${{ env.DEPENDABOT_BRANCH }}
         fetch-depth: 0
@@ -55,7 +55,7 @@ jobs:
 
     steps:
     - name: Checkout repository
-      uses: actions/checkout@v5
+      uses: actions/checkout@v6
       with:
         fetch-depth: 0