Bumping gax, using gax-bom (#3841)

Author: garrettjonesgoogle

google-cloud-bom/pom.xml

@@ -167,36 +167,10 @@
       </dependency>
       <dependency>
         <groupId>com.google.api</groupId>
-        <artifactId>gax</artifactId>
-        <version>1.32.0</version>
-      </dependency>
-      <dependency>
-        <groupId>com.google.api</groupId>
-        <artifactId>gax</artifactId>
-        <version>1.32.0</version>
-        <classifier>testlib</classifier>
-      </dependency>
-      <dependency>
-        <groupId>com.google.api</groupId>
-        <artifactId>gax-grpc</artifactId>
-        <version>1.32.0</version>
-      </dependency>
-      <dependency>
-        <groupId>com.google.api</groupId>
-        <artifactId>gax-grpc</artifactId>
-        <version>1.32.0</version>
-        <classifier>testlib</classifier>
-      </dependency>
-      <dependency>
-        <groupId>com.google.api</groupId>
-        <artifactId>gax-httpjson</artifactId>
-        <version>0.49.0</version>
-      </dependency>
-      <dependency>
-        <groupId>com.google.api</groupId>
-        <artifactId>gax-httpjson</artifactId>
-        <version>0.49.0</version>
-        <classifier>testlib</classifier>
+        <artifactId>gax-bom</artifactId>
+        <version>1.34.0</version>
+        <type>pom</type>
+        <scope>import</scope>
       </dependency>
       <dependency>
         <groupId>com.google.api.grpc</groupId>

google-cloud-clients/pom.xml

@@ -156,7 +156,7 @@
     <site.installationModule>google-cloud-clients</site.installationModule>
     <bom.version>0.67.1-alpha-SNAPSHOT</bom.version><!-- {x-version-update:google-cloud-bom:current} -->
     <api-client.version>1.24.1</api-client.version>
-    <gax.version>1.33.1</gax.version>
+    <gax.version>1.34.0</gax.version>
     <google.auth.version>0.11.0</google.auth.version>
     <grpc.version>1.15.0</grpc.version>
     <nettyssl.version>2.0.7.Final</nettyssl.version>