add nightly workflow to run CI tests

Signed-off-by: Pranav Gaikwad <[email protected]>

.github/workflows/nightly.yaml

@@ -0,0 +1,21 @@
+name: Nightly tests
+
+on:
+  schedule:
+    - cron: '0 0 * * *'
+  workflow_dispatch:
+    inputs:
+      tag:
+        type: string
+        default: latest
+        description: Container image tag to use for testing
+
+jobs:
+  run_test:
+    name: Run e2e test
+    uses: konveyor/kantra/.github/workflows/testing.yaml@main
+    with:
+      tag: ${{ github.ref_name == 'main' && 'latest' || github.ref_name }}
+
+
+

README.md

@@ -1,3 +1,5 @@
+![Test (latest)](https://github.com/konveyor/kantra/actions/workflows/nightly.yml/badge.svg?branch=main)
+
 # Kantra
 
 Kantra is a CLI that unifies analysis and transformation capabilities of Konveyor. It is available for Linux, Mac and Windows.