Setup Release GitHub Action (#376)

* Setup release workflow

* Pass GH Token & publish with onTagOrDraft

Author: manosim

.github/workflows/release.yml

@@ -0,0 +1,40 @@
+name: Release App
+
+on:
+  push:
+    branches:
+      - release
+
+jobs:
+  release-macos:
+    runs-on: macos-10.15
+
+    steps:
+      - uses: actions/checkout@v2
+
+      - name: Get yarn cache
+        id: yarn-cache
+        run: echo "::set-output name=dir::$(yarn cache dir)"
+
+      - uses: actions/cache@v1
+        with:
+          path: ${{ steps.yarn-cache.outputs.dir }}
+          key: ${{ runner.os }}-yarn-${{ hashFiles('**/yarn.lock') }}
+          restore-keys: |
+            ${{ runner.os }}-yarn-
+
+      - name: Install Dependencies
+        run: yarn install
+
+      - name: Build
+        run: yarn build
+
+      - name: Pack (electron-builder)
+        run: yarn pack
+
+      - name: Publish macOS (electron-builder)
+        env:
+          CSC_LINK: ${{ secrets.mac_certs }}
+          CSC_KEY_PASSWORD: ${{ secrets.mac_certs_password }}
+          GH_TOKEN: ${{ secrets.gh_token }}
+        run: yarn electron-builder --publish onTagOrDraft