Bump phpstan/phpstan-deprecation-rules from 1.0.0 to 1.2.0 (#304)

Bumps [phpstan/phpstan-deprecation-rules](https://github.com/phpstan/phpstan-deprecation-rules) from 1.0.0 to 1.2.0.
- [Release notes](https://github.com/phpstan/phpstan-deprecation-rules/releases)
- [Commits](phpstan/phpstan-deprecation-rules@1.0.0...1.2.0)

---
updated-dependencies:
- dependency-name: phpstan/phpstan-deprecation-rules
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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