wip: ci workflow gating on ts-sdk changes (#4152)

* ci workflow gating on ts-sdk changes

* test this; expect not to run, but other CI failure

* expect to trigger

* update CI

* expect to not trigger

* revert ruby change, working as expected

.github/workflows/ci.yml

@@ -176,8 +176,23 @@ jobs:
           cli_path="$(yarn workspace @fern-api/cli bin fern:dev)"
           ./scripts/live-test.sh "$cli_path" "$FERN_ORG_TOKEN_DEV"
 
+  changes:
+    runs-on: ubuntu-latest
+    outputs:
+      typescript: ${{ steps.filter.outputs.typescript }}
+    steps:
+      - uses: actions/checkout@v2
+      - uses: dorny/paths-filter@v2
+        id: filter
+        with:
+          filters: |
+            typescript:
+              - 'generators/typescript/sdk/**'
+
   node-version-tests:
     runs-on: ubuntu-latest
+    needs: changes
+    if: ${{ needs.changes.outputs.typescript == 'true' }}
     steps:
       - name: Checkout repo
         uses: actions/checkout@v4
@@ -198,6 +213,8 @@ jobs:
 
   cloudflare-startup-tests:
     runs-on: ubuntu-latest
+    needs: changes
+    if: ${{ needs.changes.outputs.typescript == 'true' }}
     steps:
       - name: Checkout repo
         uses: actions/checkout@v4
@@ -210,6 +227,8 @@ jobs:
 
   browser-startup-tests:
     runs-on: ubuntu-latest
+    needs: changes
+    if: ${{ needs.changes.outputs.typescript == 'true' }}
     steps:
       - name: Checkout repo
         uses: actions/checkout@v4
@@ -218,4 +237,4 @@ jobs:
         run: ./scripts/browser-startup-test.sh
 
       - name: Ensure no changes to git-tracked files
-        run: git --no-pager diff --exit-code
+        run: git --no-pager diff --exit-code