fix(prerelease): calculate right version if branch is set to alpha,beta or rc

.release.yml

@@ -1,25 +1,26 @@
-release: "github"
-github:
-  repo: "go-semantic-release"
-  user: "nightapes"
-commitFormat: angular
-branch:
-  master: release
-assets:
-  - name: ./build/go-semantic-release
-    compress: false
-  - name: ./build/go-semantic-release.exe
-    compress: false
-changelog:
-  docker:
-    latest: true
-    repository: "nightapes/go-semantic-release"
-hooks:
-  preRelease:
-    - docker build -t nightapes/go-semantic-release:latest .
-    - docker tag nightapes/go-semantic-release:latest docker.pkg.github.com/nightapes/go-semantic-release/go-semantic-release:$RELEASE_VERSION
-    - docker tag nightapes/go-semantic-release:latest nightapes/go-semantic-release:$RELEASE_VERSION
-  postRelease:
-    - docker push nightapes/go-semantic-release:latest
-    - docker push nightapes/go-semantic-release:$RELEASE_VERSION
-    - docker push docker.pkg.github.com/nightapes/go-semantic-release/go-semantic-release:$RELEASE_VERSION
+release: "github"
+github:
+  repo: "go-semantic-release"
+  user: "nightapes"
+commitFormat: angular
+branch:
+  master: release
+  beta: beta
+assets:
+  - name: ./build/go-semantic-release
+    compress: false
+  - name: ./build/go-semantic-release.exe
+    compress: false
+changelog:
+  docker:
+    latest: true
+    repository: "nightapes/go-semantic-release"
+hooks:
+  preRelease:
+    - docker build -t nightapes/go-semantic-release:latest .
+    - docker tag nightapes/go-semantic-release:latest docker.pkg.github.com/nightapes/go-semantic-release/go-semantic-release:$RELEASE_VERSION
+    - docker tag nightapes/go-semantic-release:latest nightapes/go-semantic-release:$RELEASE_VERSION
+  postRelease:
+    - docker push nightapes/go-semantic-release:latest
+    - docker push nightapes/go-semantic-release:$RELEASE_VERSION
+    - docker push docker.pkg.github.com/nightapes/go-semantic-release/go-semantic-release:$RELEASE_VERSION