chore(deps): update dependency com.google.http-client:google-http-client-protobuf to v1.41.8 (googleapis#1656)

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This PR contains the following updates:

| Package | Change | Age | Adoption | Passing | Confidence |
|---|---|---|---|---|---|
| [com.google.http-client:google-http-client-protobuf](https://togithub.com/googleapis/google-http-java-client) | `1.41.8-SNAPSHOT` -> `1.41.8` | [![age](https://badges.renovateapi.com/packages/maven/com.google.http-client:google-http-client-protobuf/1.41.8/age-slim)](https://docs.renovatebot.com/merge-confidence/) | [![adoption](https://badges.renovateapi.com/packages/maven/com.google.http-client:google-http-client-protobuf/1.41.8/adoption-slim)](https://docs.renovatebot.com/merge-confidence/) | [![passing](https://badges.renovateapi.com/packages/maven/com.google.http-client:google-http-client-protobuf/1.41.8/compatibility-slim/1.41.8-SNAPSHOT)](https://docs.renovatebot.com/merge-confidence/) | [![confidence](https://badges.renovateapi.com/packages/maven/com.google.http-client:google-http-client-protobuf/1.41.8/confidence-slim/1.41.8-SNAPSHOT)](https://docs.renovatebot.com/merge-confidence/) |

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Author: renovate-bot

google-http-client-bom/pom.xml

@@ -98,7 +98,7 @@
       <dependency>
         <groupId>com.google.http-client</groupId>
         <artifactId>google-http-client-protobuf</artifactId>
-        <version>1.41.8-SNAPSHOT</version><!-- {x-version-update:google-http-client-protobuf:current} -->
+        <version>1.41.8</version><!-- {x-version-update:google-http-client-protobuf:current} -->
       </dependency>
       <dependency>
         <groupId>com.google.http-client</groupId>