chore: add e2e-skip workflow for non-code changes

Author: piotr-iohk

.github/workflows/e2e-skip.yml

@@ -0,0 +1,18 @@
+name: E2E Skip
+
+on:
+  pull_request:
+    paths-ignore:
+      - 'app/**'
+      - 'gradle/**'
+      - '*.gradle.kts'
+      - 'gradle.properties'
+      - '.github/workflows/e2e.yml'
+
+jobs:
+  e2e-status:
+    if: github.event.pull_request.draft == false
+    name: e2e-status
+    runs-on: ubuntu-latest
+    steps:
+      - run: echo "E2E skipped - no code changes"