chore: regenerate README versions (#153)

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Author: yoshi-automation

README.md

@@ -17,7 +17,7 @@ If you are using Maven with [BOM][libraries-bom], add this to your pom.xml file
  <dependency>
  <groupId>com.google.cloud</groupId>
  <artifactId>libraries-bom</artifactId>
- <version>5.4.0</version>
+ <version>5.5.0</version>
  <type>pom</type>
  <scope>import</scope>
  </dependency>

synth.metadata

@@ -4,7 +4,7 @@
  "git": {
  "name": ".",
  "remote": "https://github.com/googleapis/java-tasks.git",
- "sha": "4df90acf9e17654318a0f8d7439e0d867ea317e5"
+ "sha": "f16972c45e53cdd4b4015823fe4c3588539a1e7a"
  }
  },
  {