GRD: Use G1GC for IDEs run from Gradle
GRD: Use G1GC for IDEs run from Gradle

Since G1GC is a default for all IDEs

[skip ci]

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