chore(deps): bump guava from 28.2-jre to 29.0-jre

Bumps [guava](https://github.com/google/guava) from 28.2-jre to 29.0-jre.
- [Release notes](https://github.com/google/guava/releases)
- [Commits](https://github.com/google/guava/commits)

Signed-off-by: dependabot[bot] <support@github.com>

pom.xml

@@ -36,7 +36,7 @@
 		<java.version>8</java.version>
 
 		<bitcoinj-core.version>0.15.8</bitcoinj-core.version>
-		<google.guava.version>28.2-jre</google.guava.version>
+		<google.guava.version>29.0-jre</google.guava.version>
 		<bitcoin-rpc-client.version>1.2.0</bitcoin-rpc-client.version>
 		<fasterxml.jackson.version>2.11.1</fasterxml.jackson.version>
 		<gson.version>2.8.6</gson.version>