Split schema validation workflow into two jobs

This ensures that we see validation results from both schemas

Author: optionsome

.github/workflows/schema-validation.yml

@@ -6,9 +6,9 @@ on:
       - dev-2.x
 
 jobs:
-  validate-gtfs:
+  validate-gtfs-schema:
     if: github.repository_owner == 'opentripplanner'
-    name: Validate GraphQL schema changes
+    name: Validate GTFS GraphQL schema changes
     runs-on: ubuntu-latest
 
     steps:
@@ -31,6 +31,28 @@ jobs:
       - name: Validate GTFS GraphQL schema changes
         run: |
           graphql-inspector diff 'git:origin/dev-2.x:application/src/main/resources/org/opentripplanner/apis/gtfs/schema.graphqls' 'application/src/main/resources/org/opentripplanner/apis/gtfs/schema.graphqls'
+  
+  validate-transmodel-schema:
+    if: github.repository_owner == 'opentripplanner'
+    name: Validate Transmodel GraphQL schema changes
+    runs-on: ubuntu-latest
+ 
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+      
+      - name: 'Fetch dev.2.x for diffing'
+        run: |
+          git fetch origin dev-2.x --depth 1
+
+
+      - uses: actions/setup-node@v4
+        with:
+          node-version: 22
+
+      - name: Install GraphQL Inspector
+        run: |
+          npm i --global @graphql-inspector/ci graphql @graphql-inspector/diff-command @graphql-inspector/graphql-loader @graphql-inspector/git-loader
 
       - name: Validate Transmodel GraphQL schema changes
         run: |