deps: update autovalue to 1.8.1 (#638)

Author: elharo

pom.xml

@@ -63,9 +63,9 @@
  <project.junit.version>4.13.2</project.junit.version>
  <project.guava.version>30.1.1-android</project.guava.version>
  <project.appengine.version>1.9.88</project.appengine.version>
- <project.autovalue.version>1.7.4</project.autovalue.version>
  <project.findbugs.version>3.0.2</project.findbugs.version>
  <deploy.autorelease>false</deploy.autorelease>
+ <project.autovalue.version>1.8.1</project.autovalue.version>
  <auto-value-annotation.version>1.8.1</auto-value-annotation.version>
  </properties>