Update dependencies

Author: rubengees

gradle/versions.gradle

@@ -9,13 +9,13 @@ ext {
     buildConfigPluginVersion = '1.1.8'
     freefairPluginsVersion = '1.0.0'
 
-    jacocoVersion = '0.7.10-SNAPSHOT'
+    jacocoVersion = '0.8.0'
     checkstyleVersion = '8.5'
-    errorproneVersion = '2.1.3'
+    errorproneVersion = '2.2.0'
     findbugsVersion = '3.0.1'
     pmdVersion = '6.0.0'
 
-    lombokVersion = '1.16.18'
+    lombokVersion = '1.16.20'
     jsr305Version = '3.0.2'
     javaxExtrasVersion = '0.1.0'
 
@@ -24,7 +24,7 @@ ext {
     moshiVersion = '1.5.0'
 
     junitVersion = '4.12'
-    assertjVersion = '3.8.0'
+    assertjVersion = '3.9.0'
     privateConstructorVersion = '1.2.0'
 
     deps = [