Synchronise all plugins on Java 17

Minimum required GoCD version moves to 22.1.0.

Author: chadlwilson

build.gradle

@@ -46,10 +46,6 @@ allprojects {
 }
 
 subprojects {
- tasks.withType(JavaCompile).configureEach {
- options.release = 17
- }
-
  repositories {
  mavenCentral()
  mavenLocal()