docs: Jacoco 0.8.2 was released with Kotlin support

This change updates the README to advise users to use Jacoco 0.8.2+
instead, which natively supports filtering out Kotlin generated methods.

Author: fabianishere

README.md

@@ -3,20 +3,16 @@ A Kotlin compiler plugin that annotates Kotlin-generated methods with `lombok.Ge
 that these methods have been generated by the compiler.
 
 ## JaCoCo solution (new)
-Please note that JaCoCo recently landed support for recognizing Kotlin-generated
-code, so we suggest using one of their snapshots builds (0.8.2-SNAPSHOT+) instead if possible.
-It has the advantage of not polluting your code with `lombok.Generated` annotations.
+Please note that JaCoCo landed support for recognizing Kotlin-generated
+code in 0.8.2, so we advise using that instead if possible.
+It has the advantage of not polluting your code with `lombok.Generated` 
+annotations.
 
 In Gradle, you can do that as follows:
 
 ```groovy
-repositories {
-    // This repository is needed to get the latest snapshot of JaCoCo
-    maven { url = "https://oss.sonatype.org/content/repositories/snapshots" }
-}
-
 jacoco {
-     toolVersion = '0.8.2-SNAPSHOT'
+     toolVersion = '0.8.2'
 }
 ```