deps: Update dependency com.google.api:gax to v2.48.0 (#1954)

Author: renovate-bot

pom.xml

@@ -209,7 +209,7 @@
       <dependency>
         <groupId>com.google.api</groupId>
         <artifactId>gax</artifactId>
-        <version>2.46.1</version>
+        <version>2.48.0</version>
       </dependency>
       <dependency>
         <groupId>org.reactivestreams</groupId>