Bump apollo-server-core from 2.12.0 to 2.14.2 (app-sre#76)

Bumps [apollo-server-core](https://github.com/apollographql/apollo-server) from 2.12.0 to 2.14.2.
- [Release notes](https://github.com/apollographql/apollo-server/releases)
- [Changelog](https://github.com/apollographql/apollo-server/blob/master/CHANGELOG.md)
- [Commits](https://github.com/apollographql/apollo-server/compare/[email protected]@2.14.2)

Signed-off-by: dependabot[bot] <[email protected]>

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

Author: dependabot[bot]