deps: update dependency com.google.cloud:google-cloud-pubsublite-bom to v1.5.5 (#4283)

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This PR contains the following updates:

| Package | Change | Age | Adoption | Passing | Confidence |
|---|---|---|---|---|---|
| [com.google.cloud:google-cloud-pubsublite-bom](https://togithub.com/googleapis/java-pubsub) | `1.5.4` -> `1.5.5` | [![age](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-pubsublite-bom/1.5.5/age-slim)](https://docs.renovatebot.com/merge-confidence/) | [![adoption](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-pubsublite-bom/1.5.5/adoption-slim)](https://docs.renovatebot.com/merge-confidence/) | [![passing](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-pubsublite-bom/1.5.5/compatibility-slim/1.5.4)](https://docs.renovatebot.com/merge-confidence/) | [![confidence](https://badges.renovateapi.com/packages/maven/com.google.cloud:google-cloud-pubsublite-bom/1.5.5/confidence-slim/1.5.4)](https://docs.renovatebot.com/merge-confidence/) |

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Author: renovate-bot

pom.xml

@@ -632,7 +632,7 @@
       <dependency>
         <groupId>com.google.cloud</groupId>
         <artifactId>google-cloud-pubsublite-bom</artifactId>
-        <version>1.5.4</version>
+        <version>1.5.5</version>
         <type>pom</type>
         <scope>import</scope>
       </dependency>