deps: update dependency com.google.guava:guava-bom to v31 (#577)

Author: renovate-bot

java-core/pom.xml

@@ -162,7 +162,7 @@
     <protobuf.version>3.17.3</protobuf.version>
     <opencensus.version>0.28.0</opencensus.version>
     <annotations-api.version>1.3.2</annotations-api.version>
-    <guava.version>30.1.1-jre</guava.version>
+    <guava.version>31.0.1-jre</guava.version>
     <junit.version>4.13.2</junit.version>
     <truth.version>1.1.3</truth.version>
     <easymock.version>3.6</easymock.version>