chore(deps): bump karaf.version from 4.4.6 to 4.4.9

Bumps `karaf.version` from 4.4.6 to 4.4.9.

Updates `org.apache.karaf.features:framework` from 4.4.6 to 4.4.9

Updates `org.apache.karaf.features:standard` from 4.4.6 to 4.4.9

---
updated-dependencies:
- dependency-name: org.apache.karaf.features:framework
  dependency-version: 4.4.9
  dependency-type: direct:production
  update-type: version-update:semver-patch
- dependency-name: org.apache.karaf.features:standard
  dependency-version: 4.4.9
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

karaf/pom.xml

@@ -72,7 +72,7 @@
 
     <properties>
         <!-- Try to enable `maven-enforcer-plugin` after update -->
-        <karaf.version>4.4.6</karaf.version>
+        <karaf.version>4.4.9</karaf.version>
     </properties>
 
     <build>