Use BOM where possible (#411)

pom.xml

@@ -71,7 +71,6 @@
     <skipITs>true</skipITs>
     <it.windows>false</it.windows>
     <powershell.version>1.3</powershell.version>
-    <google-oauth-plugin.version>1.0.8</google-oauth-plugin.version>
     <google.http.version>1.42.2</google.http.version>
     <google.compute.api.version>1.25.0</google.compute.api.version>
     <com.google.oauth-client.version>1.34.1</com.google.oauth-client.version>
@@ -89,7 +88,7 @@
       <dependency>
         <groupId>io.jenkins.tools.bom</groupId>
         <artifactId>bom-2.387.x</artifactId>
-        <version>2378.v3e03930028f2</version>
+        <version>2465.va_e76ed7b_3061</version>
         <type>pom</type>
         <scope>import</scope>
       </dependency>
@@ -107,7 +106,6 @@
     <dependency>
       <groupId>org.jenkins-ci.plugins</groupId>
       <artifactId>google-oauth-plugin</artifactId>
-      <version>${google-oauth-plugin.version}</version>
     </dependency>
     <dependency>
       <groupId>org.jenkins-ci.plugins</groupId>