deps: update to guava 29.0-android (#456)

Author: elharo

pom.xml

@@ -440,7 +440,7 @@
     <project.http.version>1.34.2</project.http.version>
     <project.jsr305.version>3.0.2</project.jsr305.version>
     <project.jackson-core2.version>2.9.6</project.jackson-core2.version>
-    <project.guava.version>28.2-android</project.guava.version>
+    <project.guava.version>29.0-android</project.guava.version>
     <project.xpp3.version>1.1.4c</project.xpp3.version>
     <project.commons-logging.version>1.1.1</project.commons-logging.version>
     <project.jdo2-api.version>2.3-eb</project.jdo2-api.version>