Bump plugin_platform_interface in /packages/google_fonts

Bumps [plugin_platform_interface](https://github.com/flutter/packages/tree/main/packages) from 2.1.7 to 2.1.8.
- [Release notes](https://github.com/flutter/packages/releases)
- [Commits](https://github.com/flutter/packages/commits/plugin_platform_interface-v2.1.8/packages)

---
updated-dependencies:
- dependency-name: plugin_platform_interface
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

packages/google_fonts/pubspec.lock

@@ -439,10 +439,10 @@ packages:
     dependency: "direct dev"
     description:
       name: plugin_platform_interface
-      sha256: f4f88d4a900933e7267e2b353594774fc0d07fb072b47eedcd5b54e1ea3269f8
+      sha256: "4820fbfdb9478b1ebae27888254d445073732dae3d6ea81f0b7e06d5dedc3f02"
       url: "https://pub.dev"
     source: hosted
-    version: "2.1.7"
+    version: "2.1.8"
   pool:
     dependency: transitive
     description: