chore: regenerate README (#127)

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Author: yoshi-automation

README.md

@@ -20,7 +20,7 @@ If you are using Maven, add this to your pom.xml file:
 <dependency>
  <groupId>com.google.cloud</groupId>
  <artifactId>google-cloud-mediatranslation</artifactId>
- <version>0.2.0</version>
+ <version>0.2.2</version>
 </dependency>
 
 ```

synth.metadata

@@ -4,7 +4,7 @@
  "git": {
  "name": ".",
  "remote": "https://github.com/googleapis/java-mediatranslation.git",
- "sha": "a587a2037e4a410786ef8f239d27d1dab299ae46"
+ "sha": "32bf8385a1df637e03c7a30959663298fdfb23f6"
  }
  },
  {