chore(deps): update dependency com.google.auto.value:auto-value-annotations to v1.8 (#203)

Co-authored-by: Elliotte Rusty Harold <[email protected]>

Author: renovate-bot

build.gradle

@@ -39,7 +39,7 @@ ext {
   // Shortcuts for libraries we are using
   libraries = [
       javax_annotations: 'javax.annotation:javax.annotation-api:1.3.2',
-      auto_value_annotations: 'com.google.auto.value:auto-value-annotations:1.7.4',
+      auto_value_annotations: 'com.google.auto.value:auto-value-annotations:1.8',
       auto_value: 'com.google.auto.value:auto-value:1.7.4',
       guava: 'com.google.guava:guava:30.1-android',
       jsr305: 'com.google.code.findbugs:jsr305:3.0.2',