build(deps): bump actions/upload-artifact from 4 to 7

Bumps [actions/upload-artifact](https://github.com/actions/upload-artifact) from 4 to 7.
- [Release notes](https://github.com/actions/upload-artifact/releases)
- [Commits](actions/upload-artifact@v4...v7)

---
updated-dependencies:
- dependency-name: actions/upload-artifact
  dependency-version: '7'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

.github/workflows/ci.yml

@@ -79,7 +79,7 @@ jobs:
         run: uvx twine check dist/*
 
       - name: Upload distributions
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: python-distributions
           path: dist/*

.github/workflows/publish-python.yml

@@ -62,7 +62,7 @@ jobs:
 
       - name: Upload distributions
         if: ${{ github.event.inputs.target == 'all' || (github.event.inputs.target == 'bootstrap-1' && matrix.publish_in_bootstrap_1) || (github.event.inputs.target == 'bootstrap-2' && matrix.publish_in_bootstrap_2) }}
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: ${{ env.PURE_PYTHON_ARTIFACT_PREFIX }}-${{ matrix.package_path }}
           path: dist/*
@@ -126,7 +126,7 @@ jobs:
         run: uvx twine check dist/*
 
       - name: Upload distributions
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: bindings-wheels-${{ matrix.os }}
           path: dist/*
@@ -156,7 +156,7 @@ jobs:
         run: uvx twine check dist/*
 
       - name: Upload distributions
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: bindings-sdist
           path: dist/*