[plugin-intellij] Find a mechanism to automatically update the version when a new IntelliJ release is available

The idea is to detect new JetBrains releases and automatically update the untilBuild attribute in the gradle configuration if no solution is found with the gradle configuration alone.

Start by locating the Gradle configuration that defines the IntelliJ plugin's untilBuild attribute and review how JetBrains releases are currently represented. Determine whether Gradle alone can detect new releases; done means a decided, repeatable mechanism that updates untilBuild automatically when a new IntelliJ release is available.

Written by the indexing model from the issue text.