Update Guava dependency to pickup security fixes (#178)

Author: ddsharpe

pom.xml

@@ -80,7 +80,7 @@
             <dependency>
                 <groupId>com.google.guava</groupId>
                 <artifactId>guava</artifactId>
-                <version>19.0</version>
+                <version>29.0-jre</version>
             </dependency>
             <dependency>
                 <groupId>com.github.spullara.mustache.java</groupId>
@@ -90,7 +90,7 @@
             <dependency>
                 <groupId>org.jetbrains</groupId>
                 <artifactId>annotations</artifactId>
-                <version>17.0.0</version>
+                <version>19.0.0</version>
             </dependency>
         </dependencies>
     </dependencyManagement>