chore: regenerate README (#384)

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Author: yoshi-automation

.github/readme/synth.metadata/synth.metadata

@@ -4,7 +4,7 @@
  "git": {
  "name": ".",
  "remote": "https://github.com/googleapis/java-notification.git",
- "sha": "5fffd8b20c5227c2cd63c109d87ccf2afa2d24f5"
+ "sha": "a101519c63928e178b6627714ae4f8b98a62f6c2"
  }
  },
  {

README.md

@@ -22,20 +22,20 @@ If you are using Maven, add this to your pom.xml file:
 <dependency>
  <groupId>com.google.cloud</groupId>
  <artifactId>google-cloud-notification</artifactId>
- <version>0.122.5-beta</version>
+ <version>0.122.6-beta</version>
 </dependency>
 ```
 
 If you are using Gradle without BOM, add this to your dependencies
 
 ```Groovy
-compile 'com.google.cloud:google-cloud-notification:0.122.5-beta'
+compile 'com.google.cloud:google-cloud-notification:0.122.6-beta'
 ```
 
 If you are using SBT, add this to your dependencies
 
 ```Scala
-libraryDependencies += "com.google.cloud" % "google-cloud-notification" % "0.122.5-beta"
+libraryDependencies += "com.google.cloud" % "google-cloud-notification" % "0.122.6-beta"
 ```
 
 ## Authentication