chore: add socket.yml for Socket dependency scans

Add a socket.yml so Socket's dependency scans skip the CLI e2e test
fixtures and only run on pull requests that change a manifest or
lockfile.

Mono-RevId: d34bef6677797710be8658b686ab69f11e315ca1

Author: ericallam

socket.yml

@@ -0,0 +1,12 @@
+version: 2
+
+projectIgnorePaths:
+  - "/packages/cli-v3/e2e/fixtures"
+
+triggerPaths:
+  - "package.json"
+  - "pnpm-lock.yaml"
+  - "pnpm-workspace.yaml"
+  - "package-lock.json"
+  - "yarn.lock"
+  - "socket.yml"