GRD: update gradle task related to publishing and releases
GRD: update gradle task related to publishing and releases

* make correct patch version for beta channel
* cherry-pick changelog commit to release branch automatically

intellij-rust/intellij-rust,intellij-rust/intellij-rust,intellij-rust/intellij-rust,Undin/intellij-rust,intellij-rust/intellij-rust,Undin/intellij-rust,intellij-rust/intellij-rust,Undin/intellij-rust,intellij-rust/intellij-rust,Undin/intellij-rust,Undin/intellij-rust,Undin/intellij-rust