chore(CI): bump the actions group with 2 updates

Bumps the actions group with 2 updates: [actions/checkout](https://github.com/actions/checkout) and [actions/download-artifact](https://github.com/actions/download-artifact).


Updates `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)

Updates `actions/download-artifact` from 4 to 5
- [Release notes](https://github.com/actions/download-artifact/releases)
- [Commits](actions/download-artifact@v4...v5)

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

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

Author: dependabot[bot]

.github/workflows/codespell.yml

@@ -16,7 +16,7 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
       - name: Annotate locations with typos
         uses: codespell-project/codespell-problem-matcher@v1
       - name: Codespell

.github/workflows/lint.yml

@@ -12,7 +12,7 @@ jobs:
 
     steps:
     - name: Checkout pygit2
-      uses: actions/checkout@v4
+      uses: actions/checkout@v5
 
     - name: Set up Python
       uses: actions/setup-python@v6

.github/workflows/tests.yml

@@ -23,7 +23,7 @@ jobs:
 
     steps:
     - name: Checkout pygit2
-      uses: actions/checkout@v4
+      uses: actions/checkout@v5
 
     - name: Set up Python
       uses: actions/setup-python@v6
@@ -40,7 +40,7 @@ jobs:
     if: github.ref == 'refs/heads/master'
     steps:
     - name: Checkout
-      uses: actions/checkout@v4
+      uses: actions/checkout@v5
 
     - name: Build & test
       uses: uraimo/run-on-arch-action@v3
@@ -58,7 +58,7 @@ jobs:
     runs-on: macos-latest
     steps:
     - name: Checkout pygit2
-      uses: actions/checkout@v4
+      uses: actions/checkout@v5
 
     - name: Set up Python
       uses: actions/setup-python@v6

.github/workflows/wheels.yml

@@ -23,7 +23,7 @@ jobs:
           os: macos-13
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
 
       - uses: actions/setup-python@v6
         with:
@@ -45,7 +45,7 @@ jobs:
     runs-on: ubuntu-24.04
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
 
       - uses: actions/setup-python@v6
         with:
@@ -75,7 +75,7 @@ jobs:
     runs-on: ubuntu-24.04
 
     steps:
-    - uses: actions/download-artifact@v4
+    - uses: actions/download-artifact@v5
       with:
         path: dist
         pattern: wheels-*