Implement an e2e test suite for kcrypt encryption

Scenarios based on docs: https://kairos.io/docs/advanced/partition_encryption/

Signed-off-by: Dimitris Karakasilis <dimitris@karakasilis.me>

.github/workflows/e2e-tests.yml

@@ -0,0 +1,18 @@
+name: End to end tests
+on:
+ push:
+   branches:
+     - master
+ pull_request:
+
+jobs:
+  e2e-tests:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v3
+        with:
+          fetch-depth: 0
+      - name: Run tests
+        run: |
+          ./earthly.sh +e2e-tests