Update dependency org.projectlombok:lombok to v1.18.28

Author: renovate[bot]

app/build.gradle

@@ -52,8 +52,8 @@ dependencies {
   implementation 'com.pavelsikun:material-seekbar-preference:2.3.0'
   implementation 'org.apache.commons:commons-collections4:4.4'
 
-  compileOnly 'org.projectlombok:lombok:1.18.10'
-  annotationProcessor 'org.projectlombok:lombok:1.18.10'
+  compileOnly 'org.projectlombok:lombok:1.18.28'
+  annotationProcessor 'org.projectlombok:lombok:1.18.28'
 
   androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2'
   androidTestImplementation 'com.android.support.test:runner:1.0.2'