Bump actions/checkout from 4 to 5

Bumps [actions/checkout](https://github.com/actions/checkout) from 4 to 5.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](actions/checkout@v4...v5)

---
updated-dependencies:
- dependency-name: actions/checkout
  dependency-version: '5'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

.github/workflows/main.yml

@@ -12,7 +12,7 @@ jobs:
   lint:
     runs-on: "ubuntu-latest"
     steps:
-      - uses: "actions/checkout@v4"
+      - uses: "actions/checkout@v5"
       - name: "Set up Python"
         uses: "actions/setup-python@v5"
         with:
@@ -34,7 +34,7 @@ jobs:
     needs:
       - "lint"
     steps:
-      - uses: "actions/checkout@v4"
+      - uses: "actions/checkout@v5"
       - name: "Set up Python"
         uses: "actions/setup-python@v5"
         with:

.github/workflows/publish.yml

@@ -11,7 +11,7 @@ jobs:
     runs-on: "ubuntu-latest"
     if: "github.repository == 'pulp/squeezer'"
     steps:
-      - uses: "actions/checkout@v4"
+      - uses: "actions/checkout@v5"
       - name: "Set up Python"
         uses: "actions/setup-python@v5"
         with:

.github/workflows/release.yml

@@ -9,7 +9,7 @@ jobs:
     name: "Release"
     runs-on: "ubuntu-latest"
     steps:
-      - uses: "actions/checkout@v4"
+      - uses: "actions/checkout@v5"
         with:
           token: "${{ secrets.RELEASE_TOKEN }}"
       - name: "Set up Python"

.github/workflows/release_branch.yml

@@ -7,7 +7,7 @@ jobs:
   create-release-branch:
     runs-on: "ubuntu-latest"
     steps:
-      - uses: "actions/checkout@v4"
+      - uses: "actions/checkout@v5"
       - name: "Set up Python"
         uses: "actions/setup-python@v5"
         with:

.github/workflows/test.yml

@@ -32,7 +32,7 @@ jobs:
             image_tag: "nightly"
             lower_bounds: true
     steps:
-      - uses: "actions/checkout@v4"
+      - uses: "actions/checkout@v5"
       - uses: "actions/cache@v4"
         with:
           path: "~/.cache/pip"