Bump google-cloud-core from 1.4.2 to 1.4.3
Bump google-cloud-core from 1.4.2 to 1.4.3

Bumps [google-cloud-core](https://github.com/googleapis/python-cloud-core) from 1.4.2 to 1.4.3.
- [Release notes](https://github.com/googleapis/python-cloud-core/releases)
- [Changelog](https://github.com/googleapis/python-cloud-core/blob/master/CHANGELOG.md)
- [Commits](https://github.com/googleapis/python-cloud-core/compare/v1.4.2...v1.4.3)

Signed-off-by: dependabot[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@github.com>
annapowellsmith/openpresc,ebmdatalab/openprescribing,annapowellsmith/openpresc,ebmdatalab/openprescribing,ebmdatalab/openprescribing,annapowellsmith/openpresc,ebmdatalab/openprescribing,annapowellsmith/openpresc