deps: update google.core.version to v2.1.1 (#449)

Author: renovate-bot

pom.xml

@@ -61,7 +61,7 @@
     <protobuf.version>3.17.3</protobuf.version>
     <google.api-common.version>2.0.1</google.api-common.version>
     <google.common-protos.version>2.3.2</google.common-protos.version>
-    <google.core.version>2.1.0</google.core.version>
+    <google.core.version>2.1.1</google.core.version>
     <google.auth.version>1.1.0</google.auth.version>
     <google.http-client.version>1.39.2</google.http-client.version>
     <google.oauth-client.version>1.32.1</google.oauth-client.version>