[DEPS]: Bump wp-phpunit/wp-phpunit from 6.9.4 to 7.0.1

Bumps [wp-phpunit/wp-phpunit](https://github.com/wp-phpunit/wp-phpunit) from 6.9.4 to 7.0.1.
- [Commits](wp-phpunit/wp-phpunit@6.9.4...7.0.1)

---
updated-dependencies:
- dependency-name: wp-phpunit/wp-phpunit
  dependency-version: 7.0.1
  dependency-type: direct:development
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

composer.json

@@ -60,7 +60,7 @@
         "phpstan/phpstan": "^1.10",
         "phpunit/phpunit": "^9",
         "szepeviktor/phpstan-wordpress": "^1.3",
-        "wp-phpunit/wp-phpunit": "^6.6",
+        "wp-phpunit/wp-phpunit": "^7.0",
         "yoast/phpunit-polyfills": "^4"
     },
     "extra": {