deps: update dependency com.google.api-client:google-api-client-bom t…

…o v1.30.8 (#146)

pom.xml

@@ -157,7 +157,7 @@
     <google.common-protos.version>1.17.0</google.common-protos.version>
     <google.iam.version>0.13.0</google.iam.version>
     <google.auth.version>0.20.0</google.auth.version>
-    <google.api.version>1.30.7</google.api.version>
+    <google.api.version>1.30.8</google.api.version>
     <google.http.version>1.34.1</google.http.version>
     <grpc.version>1.27.0</grpc.version>
     <protobuf.version>3.11.3</protobuf.version>