Bump the composer group with 2 updates

Bumps the composer group with 2 updates: [guzzlehttp/psr7](https://github.com/guzzle/psr7) and [symfony/process](https://github.com/symfony/process).


Updates `guzzlehttp/psr7` from 1.9.0 to 1.9.1
- [Release notes](https://github.com/guzzle/psr7/releases)
- [Changelog](https://github.com/guzzle/psr7/blob/1.9.1/CHANGELOG.md)
- [Commits](guzzle/psr7@1.9.0...1.9.1)

Updates `symfony/process` from 3.4.40 to 3.4.47
- [Release notes](https://github.com/symfony/process/releases)
- [Changelog](https://github.com/symfony/process/blob/7.1/CHANGELOG.md)
- [Commits](symfony/process@v3.4.40...v3.4.47)

---
updated-dependencies:
- dependency-name: guzzlehttp/psr7
  dependency-type: indirect
  dependency-group: composer
- dependency-name: symfony/process
  dependency-type: indirect
  dependency-group: composer
...

Signed-off-by: dependabot[bot] <support@github.com>