deps: update dependency com.google.cloud:google-cloud-core-bom to v1.93.0 (#209)

Author: renovate-bot

google-cloud-bigtable-deps-bom/pom.xml

@@ -76,7 +76,7 @@
     <gax.version>1.54.0</gax.version>
     <google.api-common.version>1.8.1</google.api-common.version>
     <google.common-protos.version>1.17.0</google.common-protos.version>
-    <google.core.version>1.92.5</google.core.version>
+    <google.core.version>1.93.0</google.core.version>
     <google.auth.version>0.20.0</google.auth.version>
     <google-http-client.version>1.34.2</google-http-client.version>
     <!-- make sure to update the grpc version in README -->