deps: update dependency com.fasterxml.jackson:jackson-bom to v2.12.0

Author: renovate-bot

pom.xml

@@ -73,7 +73,7 @@
  <opencensus.version>0.24.0</opencensus.version>
  <findbugs.version>3.0.2</findbugs.version>
  <errorprone.version>2.4.0</errorprone.version>
- <jackson.version>2.11.3</jackson.version>
+ <jackson.version>2.12.0</jackson.version>
  </properties>
 
  <dependencyManagement>