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] <support@github.com>

Author: dependabot[bot]

.github/workflows/auto_branching.yml

@@ -43,7 +43,7 @@ jobs:
 
     steps:
       - name: Checkout Robottelo
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       - name: Create the ${{ github.event.inputs.target_branch }} branch
         id: create-branch
@@ -146,7 +146,7 @@ jobs:
     if: ${{ needs.check-group-membership.outputs.member == 'true' }}
 
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
 
       - name: Update target branch label in dependabot yml file
         id: update-dependabot

.github/workflows/auto_cherry_pick.yml

@@ -45,7 +45,7 @@ jobs:
         with:
           swap-size-gb: 10
       ## Nailgun Repo Checkout
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         if: ${{ startsWith(matrix.label, '6.') && matrix.label != github.base_ref }}
         with:
           fetch-depth: 0

.github/workflows/dispatch_release.yml

@@ -14,7 +14,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
 
       - name: Git User setup
         run: "git config --local user.email Satellite-QE.satqe.com && git config --local user.name Satellite-QE"

.github/workflows/merge_to_master.yml

@@ -18,7 +18,7 @@ jobs:
         python-version: ['3.12', '3.13', '3.14']
     steps:
       - name: Checkout Nailgun
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           fetch-depth: 2
 

.github/workflows/pull_requests.yml

@@ -17,7 +17,7 @@ jobs:
         python-version: ['3.12', '3.13', '3.14']
     steps:
       - name: Checkout Nailgun
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           fetch-depth: 2