Add release ci

.github/workflows/release.yml

@@ -0,0 +1,40 @@
+name: "Release a tag as draft"
+
+on:
+  push:
+    tags:
+      - w*
+
+jobs:
+
+  build:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v4
+
+    - name: Set up Go
+      uses: actions/setup-go@v4
+      with:
+        go-version: '1.19'
+
+    - name: Build Go-WEMIX tarball (rocksdb)
+      run: USE_ROCKSDB=YES make gwemix.tar.gz
+
+    - name: Move results to artifact (rocksdb)
+      run: mv build/gwemix.tar.gz gwemix-${{ github.ref_name }}-linux-amd64-rocksdb.tar.gz
+
+    - name: Build Go-WEMIX tarball (leveldb)
+      run: USE_ROCKSDB=NO make gwemix.tar.gz
+
+    - name: Move results to artifact (leveldb)
+      run: mv build/gwemix.tar.gz gwemix-${{ github.ref_name }}-linux-amd64-leveldb.tar.gz
+
+    - name: GH Release
+      uses: softprops/action-gh-release@v2.0.5
+      with:
+        name: WEMIX3.0 Mainnet and Testnet Build (${{ github.ref_name }})
+        draft: true
+        prerelease: true
+        files: |
+          gwemix-${{ github.ref_name }}-linux-amd64-rocksdb.tar.gz
+          gwemix-${{ github.ref_name }}-linux-amd64-leveldb.tar.gz