Bump guzzlehttp/guzzle from 6.3.3 to 6.5.7 in /php/v3.4
Bump guzzlehttp/guzzle from 6.3.3 to 6.5.7 in /php/v3.4

Bumps [guzzlehttp/guzzle](https://github.com/guzzle/guzzle) from 6.3.3 to 6.5.7.
- [Release notes](https://github.com/guzzle/guzzle/releases)
- [Changelog](https://github.com/guzzle/guzzle/blob/6.5.7/CHANGELOG.md)
- [Commits](https://github.com/guzzle/guzzle/compare/6.3.3...6.5.7)

---
updated-dependencies:
- dependency-name: guzzlehttp/guzzle
  dependency-type: indirect
...

Signed-off-by: dependabot[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@github.com>
haveal/googleads-dfa-reporting-samples,haveal/googleads-dfa-reporting-samples,googleads/googleads-dfa-reporting-samples,haveal/googleads-dfa-reporting-samples,googleads/googleads-dfa-reporting-samples,haveal/googleads-dfa-reporting-samples,haveal/googleads-dfa-reporting-samples,googleads/googleads-dfa-reporting-samples,googleads/googleads-dfa-reporting-samples,googleads/googleads-dfa-reporting-samples