Enable Gradle configuration cache (#1646)

Enable the configuration cache feature in Gradle, and adjust various
pieces of build logic that aren't configuration cache compatible.

gradle.properties

@@ -15,6 +15,8 @@ org.gradle.jvmargs= \
 
 org.gradle.parallel=true
 org.gradle.caching=true
+org.gradle.configuration-cache=true
+
 kotlin.stdlib.default.dependency=false
 kotlin.daemon.jvmargs=-XX:+UseParallelGC
 #org.gradle.workers.max=1