Bump prettier from 2.8.7 to 2.8.8

Bumps [prettier](https://github.com/prettier/prettier) from 2.8.7 to 2.8.8.
- [Release notes](https://github.com/prettier/prettier/releases)
- [Changelog](https://github.com/prettier/prettier/blob/main/CHANGELOG.md)
- [Commits](prettier/prettier@2.8.7...2.8.8)

---
updated-dependencies:
- dependency-name: prettier
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

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

package.json

@@ -37,7 +37,7 @@
   "devDependencies": {
     "@prettier/plugin-php": "0.19.4",
     "concurrently": "^7.6.0",
-    "prettier": "2.8.7",
+    "prettier": "2.8.8",
     "prettier-plugin-package": "1.3.0"
   },
   "directories": {