SpringBoot Remove --add-opens for jdk.compiler/com.sun.tools.javac.code=ALL-UNNAMED once https://github.com/gradle/gradle/issues/16126 has been fixed

Once we're using a Gradle 6.8.x version that includes the fix for https://github.com/gradle/gradle/issues/16126, we should remove the --add-opens configuration from JavaCompile tasks.

Comment From: wilkinsona

Superseded by https://github.com/spring-projects/spring-boot/pull/26465.