build(deps): bump the dependencies group with 2 updates

Bumps the dependencies group with 2 updates: [amphp/parallel-functions](https://github.com/amphp/parallel-functions) and [webmozarts/strict-phpunit](https://github.com/webmozarts/strict-phpunit).


Updates `amphp/parallel-functions` from 1.1.0 to 2.0.0
- [Release notes](https://github.com/amphp/parallel-functions/releases)
- [Commits](amphp/parallel-functions@v1.1.0...v2.0.0)

Updates `webmozarts/strict-phpunit` from 7.7.7 to 7.8.0
- [Commits](webmozarts/strict-phpunit@7.7.7...7.8.0)

---
updated-dependencies:
- dependency-name: amphp/parallel-functions
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: dependencies
- dependency-name: webmozarts/strict-phpunit
  dependency-type: direct:development
  update-type: version-update:semver-minor
  dependency-group: dependencies
...

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

composer.json

@@ -22,7 +22,7 @@
         "ext-mbstring": "*",
         "ext-phar": "*",
         "composer-plugin-api": "^2.2",
-        "amphp/parallel-functions": "^1.1",
+        "amphp/parallel-functions": "^2.0",
         "composer/semver": "^3.3.2",
         "composer/xdebug-handler": "^3.0.3",
         "fidry/console": "^0.6.0",