chore(deps): update codecov/codecov-action action to v7 (#461)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

.github/workflows/ci.yml

@@ -37,7 +37,7 @@ jobs:
           make cover # run test with coverage
         env:
           AWS_REGION: ap-northeast-1 # for awscli
-      - uses: codecov/codecov-action@v5
+      - uses: codecov/codecov-action@v7
         with:
           file: ./cover.out
           token: ${{ secrets.CODECOV_TOKEN }}