project: create poms when building, and utilize them in bootstrap. (#2259)

* project: create poms when building, and utilize them in bootstrap.

* gradle: only publish during bootstrapping

Co-authored-by: Owain van Brakel <owain.vanbrakel@gmail.com>

runelite-api/runelite-api.gradle.kts

@@ -36,4 +36,4 @@ dependencies {
     implementation(Libraries.slf4jApi)
 
     testImplementation(Libraries.junit)
-}
+}