fix: google-auth-library-oauth2-http is runtime scope (#727)

* fix: google-auth-library-oauth2-http is runtime scope

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Author: suztomo

README.md

@@ -56,13 +56,13 @@ implementation 'com.google.cloud:google-cloud-websecurityscanner'
 If you are using Gradle without BOM, add this to your dependencies:
 
 ```Groovy
-implementation 'com.google.cloud:google-cloud-websecurityscanner:2.2.0'
+implementation 'com.google.cloud:google-cloud-websecurityscanner:2.2.1'
 ```
 
 If you are using SBT, add this to your dependencies:
 
 ```Scala
-libraryDependencies += "com.google.cloud" % "google-cloud-websecurityscanner" % "2.2.0"
+libraryDependencies += "com.google.cloud" % "google-cloud-websecurityscanner" % "2.2.1"
 ```
 
 ## Authentication

google-cloud-websecurityscanner/pom.xml

@@ -89,7 +89,7 @@
     <dependency>
       <groupId>com.google.auth</groupId>
       <artifactId>google-auth-library-oauth2-http</artifactId>
-      <scope>test</scope>
+      <scope>runtime</scope>
     </dependency>
     <dependency>
       <groupId>com.google.api.grpc</groupId>