Chore/Add auto release feature throgh github actions (#19)

Signed-off-by: Udit Gaurav <[email protected]>

.github/workflows/release.yml

@@ -0,0 +1,32 @@
+---
+# This workflow is to perform automatic release on litmus-ansible repository
+# Please provide the release version and release tag in github secrets for the upcoming release.
+name: AutoRelease
+
+# Executes a job at 10:15am on the 15th day of every month
+on:
+  schedule:
+    - cron:  '0 15 10 15 * *'
+
+jobs:
+  release:
+    name: "Release"
+    runs-on: "ubuntu-latest"
+
+    steps:
+
+      # create a release branch from master
+      # Provide release branch from the github secret ex. 1.9.x
+      - uses: peterjgrainger/[email protected]
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        with:
+          branch: '${{ secrets.RELEASE_BRANCH }}'
+
+      # Provide release tag from the github secret ex. 1.9.0
+      - uses: "marvinpinto/action-automatic-releases@latest"
+        with:
+          repo_token: "${{ secrets.GITHUB_TOKEN }}"
+          automatic_release_tag: "${{ secrets.RELEASE_TAG }}"
+          prerelease: false
+          title: "${{ secrets.RELEASE_TAG }}"