feat(actions)!: remove GoogleCloudPlatform/github-actions

It's an old name for google-github-actions/setup-gcloud. When opening
GoogleCloudPlatform/github-actions in GitHub, I'm redirected to
google-github-actions/setup-gcloud which means there's no point in
maintaining two bindings.

docs/supported-actions.md

@@ -83,8 +83,6 @@ Click on a version to see the binding's code.
 * google-github-actions
     * [auth](https://github.com/google-github-actions/auth) - v0: [`AuthV0`](https://github.com/typesafegithub/github-workflows-kt/blob/v[[ version ]]/github-workflows-kt/src/gen/kotlin/io/github/typesafegithub/workflows/actions/googlegithubactions/AuthV0.kt), v1: [`AuthV1`](https://github.com/typesafegithub/github-workflows-kt/blob/v[[ version ]]/github-workflows-kt/src/gen/kotlin/io/github/typesafegithub/workflows/actions/googlegithubactions/AuthV1.kt), v2: [`AuthV2`](https://github.com/typesafegithub/github-workflows-kt/blob/v[[ version ]]/github-workflows-kt/src/gen/kotlin/io/github/typesafegithub/workflows/actions/googlegithubactions/AuthV2.kt)
     * [setup-gcloud](https://github.com/google-github-actions/setup-gcloud) - v0: [`SetupGcloudV0`](https://github.com/typesafegithub/github-workflows-kt/blob/v[[ version ]]/github-workflows-kt/src/gen/kotlin/io/github/typesafegithub/workflows/actions/googlegithubactions/SetupGcloudV0.kt), v1: [`SetupGcloudV1`](https://github.com/typesafegithub/github-workflows-kt/blob/v[[ version ]]/github-workflows-kt/src/gen/kotlin/io/github/typesafegithub/workflows/actions/googlegithubactions/SetupGcloudV1.kt), v2: [`SetupGcloudV2`](https://github.com/typesafegithub/github-workflows-kt/blob/v[[ version ]]/github-workflows-kt/src/gen/kotlin/io/github/typesafegithub/workflows/actions/googlegithubactions/SetupGcloudV2.kt)
-* GoogleCloudPlatform
-    * [github-actions](https://github.com/GoogleCloudPlatform/github-actions) - v0: [`GithubActionsV0`](https://github.com/typesafegithub/github-workflows-kt/blob/v[[ version ]]/github-workflows-kt/src/gen/kotlin/io/github/typesafegithub/workflows/actions/googlecloudplatform/GithubActionsV0.kt), v1: [`GithubActionsV1`](https://github.com/typesafegithub/github-workflows-kt/blob/v[[ version ]]/github-workflows-kt/src/gen/kotlin/io/github/typesafegithub/workflows/actions/googlecloudplatform/GithubActionsV1.kt)
 * gradle-update
     * [update-gradle-wrapper-action](https://github.com/gradle-update/update-gradle-wrapper-action) - v1: [`UpdateGradleWrapperActionV1`](https://github.com/typesafegithub/github-workflows-kt/blob/v[[ version ]]/github-workflows-kt/src/gen/kotlin/io/github/typesafegithub/workflows/actions/gradleupdate/UpdateGradleWrapperActionV1.kt)
 * gradle
@@ -141,7 +139,7 @@ Click on a version to see the binding's code.
 
 Number of bindings available:
 
-* counting by actions: 85
-* counting each version separately: 143
+* counting by actions: 84
+* counting each version separately: 141
 
 Actions [providing typings](https://github.com/typesafegithub/github-actions-typing/) (marked with ✅ on the above list): 18