feat(tool): Add CI workflow to find untested Neon APIs

Signed-off-by: jld3103 <jld3103yt@gmail.com>

.github/workflows/neon.yml

@@ -0,0 +1,21 @@
+name: Neon
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+
+concurrency:
+  group: neon-${{ github.head_ref || github.run_id }}
+  cancel-in-progress: true
+
+jobs:
+  untested-apis:
+    name: Untested APIs
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@8ade135a41bc03ea155e62e844d188df1ea18608 # v4
+
+      - name: Find untested Neon APIs
+        run: ./tool/find-untested-neon-apis.sh