Bump actions/upload-artifact from 6 to 7 (#341)

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

.github/workflows/ci.yml

@@ -55,7 +55,7 @@ jobs:
       #   with:
       #     files: ./cov-html/libopenlibm.info
       #     token: ${{ secrets.CODECOV_TOKEN }}
-      - uses: actions/upload-artifact@v6
+      - uses: actions/upload-artifact@v7
         with:
           name: code-coverage-report-old
           path: ./cov-html/
@@ -87,7 +87,7 @@ jobs:
         with:
           files: ./cov-html/libopenlibm.info
           token: ${{ secrets.CODECOV_TOKEN }}
-      - uses: actions/upload-artifact@v6
+      - uses: actions/upload-artifact@v7
         with:
           name: code-coverage-report
           path: ./cov-html/