Rework Prettier invocation (#28851)

.github/workflows/lint-json.yml

@@ -1,38 +0,0 @@
-name: JSON Linting
-on:
-  push:
-    branches-ignore:
-      - 'dependabot/**'
-      - 'renovate/**'
-    paths:
-      - 'package.json'
-      - 'yarn.lock'
-      - '.nvmrc'
-      - '.prettier*'
-      - '**/*.json'
-      - '.github/workflows/lint-json.yml'
-      - '!app/javascript/mastodon/locales/*.json'
-
-  pull_request:
-    paths:
-      - 'package.json'
-      - 'yarn.lock'
-      - '.nvmrc'
-      - '.prettier*'
-      - '**/*.json'
-      - '.github/workflows/lint-json.yml'
-      - '!app/javascript/mastodon/locales/*.json'
-
-jobs:
-  lint:
-    runs-on: ubuntu-latest
-
-    steps:
-      - name: Clone repository
-        uses: actions/checkout@v4
-
-      - name: Set up Javascript environment
-        uses: ./.github/actions/setup-javascript
-
-      - name: Prettier
-        run: yarn lint:json