deps: update dependency com.google.cloud:grpc-gcp to v1.5.0 (#2265)

Author: renovate-bot

java-shared-dependencies/first-party-dependencies/pom.xml

@@ -22,7 +22,7 @@
   <properties>
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
     <site.installationModule>${project.artifactId}</site.installationModule>
-    <grpc-gcp.version>1.4.1</grpc-gcp.version>
+    <grpc-gcp.version>1.5.0</grpc-gcp.version>
     <google.oauth-client.version>1.34.1</google.oauth-client.version>
     <google.api-client.version>2.2.0</google.api-client.version>
   </properties>