feat: add schema check action

.github/workflows/schema-check.yml

@@ -0,0 +1,64 @@
+name: Schema Checker
+
+on:
+  push:
+  workflow_dispatch:
+
+jobs:
+  schemaChecker:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Setup JDK 22
+        uses: actions/setup-java@v4
+        with:
+          distribution: zulu
+          java-version: 22
+      - name: Cache Maven packages
+        uses: actions/cache@v4
+        with:
+          path: |
+            ~/.m2/repository
+            !~/.m2/repository/io/aklivity/zilla
+          key: ${{ runner.os }}-m2-${{ hashFiles('**/pom.xml') }}
+          restore-keys: ${{ runner.os }}-m2
+      - name: Build with Maven
+        run: ./mvnw -B -U -nsu -Ddocker.logStdout -Ddocker.verbose -DskipTests install jacoco:report-aggregate
+        env:
+          GITHUB_ACTOR: ${{ github.actor }}
+          GITHUB_TOKEN: ${{ github.token }}
+
+      - name: Checkout docs repo
+        uses: actions/checkout@v4
+        with:
+          repository: aklivity/zilla-docs
+
+      - name: Build latest schema
+        run: |
+          CONTAINER_ID=$(docker run -d --rm -e ZILLA_INCUBATOR_ENABLED=true ghcr.io/aklivity/zilla:develop-SNAPSHOT start -v -Pzilla.engine.verbose.schema.plain);
+          sleep 5;
+          docker logs $CONTAINER_ID > ./.check-schema/zilla-schema.json 2>&1;
+          docker stop $CONTAINER_ID;
+
+          sed -i '1,2d' ./.check-schema/zilla-schema.json;
+          sed -i '$d' ./.check-schema/zilla-schema.json;
+
+      - name: Setup pnpm
+        uses: pnpm/action-setup@v4
+        with:
+          version: 9
+          run_install: true
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: 20
+          cache: pnpm
+
+      - name: Install deps
+        run: pnpm install-check-schema
+
+      - name: Schema Checker
+        run: pnpm check-schema
+