deps: update dependency org.apache.felix:maven-bundle-plugin to v5.1.8 (#1699)

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This PR contains the following updates:

| Package | Change | Age | Adoption | Passing | Confidence |
|---|---|---|---|---|---|
| [org.apache.felix:maven-bundle-plugin](http://felix.apache.org/components/bundle-plugin/) ([source](https://gitbox.apache.org/repos/asf?p=felix-dev)) | `5.1.7` -> `5.1.8` | [![age](https://badges.renovateapi.com/packages/maven/org.apache.felix:maven-bundle-plugin/5.1.8/age-slim)](https://docs.renovatebot.com/merge-confidence/) | [![adoption](https://badges.renovateapi.com/packages/maven/org.apache.felix:maven-bundle-plugin/5.1.8/adoption-slim)](https://docs.renovatebot.com/merge-confidence/) | [![passing](https://badges.renovateapi.com/packages/maven/org.apache.felix:maven-bundle-plugin/5.1.8/compatibility-slim/5.1.7)](https://docs.renovatebot.com/merge-confidence/) | [![confidence](https://badges.renovateapi.com/packages/maven/org.apache.felix:maven-bundle-plugin/5.1.8/confidence-slim/5.1.7)](https://docs.renovatebot.com/merge-confidence/) |

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google-http-client-apache-v2/pom.xml

@@ -68,7 +68,7 @@
       <plugin>
         <groupId>org.apache.felix</groupId>
         <artifactId>maven-bundle-plugin</artifactId>
-        <version>5.1.7</version>
+        <version>5.1.8</version>
         <executions>
           <execution>
             <id>bundle-manifest</id>

google-http-client/pom.xml

@@ -97,7 +97,7 @@
       <plugin>   
         <groupId>org.apache.felix</groupId>
         <artifactId>maven-bundle-plugin</artifactId>
-        <version>5.1.7</version>
+        <version>5.1.8</version>
         <executions>
           <execution>
             <id>bundle-manifest</id>