deps: update core dependencies (#171)

Author: renovate-bot

pom.xml

@@ -63,7 +63,7 @@
     <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
     <github.global.server>github</github.global.server>
     <site.installationModule>google-cloud-storage-parent</site.installationModule>
-    <google.core.version>1.93.1</google.core.version>
+    <google.core.version>1.93.2</google.core.version>
     <google.api-common.version>1.8.1</google.api-common.version>
     <junit.version>4.13</junit.version>
     <threeten.version>1.4.1</threeten.version>
@@ -103,7 +103,7 @@
       <dependency>
         <groupId>io.grpc</groupId>
         <artifactId>grpc-bom</artifactId>
-        <version>1.27.2</version>
+        <version>1.28.0</version>
         <type>pom</type>
         <scope>import</scope>
       </dependency>