chore(deps): update actions/upload-artifact action to v7

.github/workflows/test.yml

@@ -68,7 +68,7 @@ jobs:
           } >> "$GITHUB_STEP_SUMMARY"
 
       - name: Upload coverage HTML report
-        uses: actions/upload-artifact@b7c566a772e6b6bfb58ed0dc250532a479d7789f # v6
+        uses: actions/upload-artifact@bbbca2ddaa5d8feaa63e36b76fdaad77386f024f # v7
         if: always() && matrix.python-version == '3.14'
         with:
           name: coverage-report-html-${{ matrix.python-version }}
@@ -77,7 +77,7 @@ jobs:
           retention-days: 7
 
       - name: Upload coverage XML report
-        uses: actions/upload-artifact@b7c566a772e6b6bfb58ed0dc250532a479d7789f # v6
+        uses: actions/upload-artifact@bbbca2ddaa5d8feaa63e36b76fdaad77386f024f # v7
         if: always() && matrix.python-version == '3.14'
         with:
           name: coverage-report-xml-${{ matrix.python-version }}
@@ -86,7 +86,7 @@ jobs:
           retention-days: 7
 
       - name: Upload test results
-        uses: actions/upload-artifact@b7c566a772e6b6bfb58ed0dc250532a479d7789f # v6
+        uses: actions/upload-artifact@bbbca2ddaa5d8feaa63e36b76fdaad77386f024f # v7
         if: always()
         with:
           name: test-results-${{ matrix.python-version }}