Bump com.mebigfatguy.fb-contrib:fb-contrib from 7.6.3 to 7.6.4 (#17774)

Bumps [com.mebigfatguy.fb-contrib:fb-contrib](https://github.com/mebigfatguy/fb-contrib) from 7.6.3 to 7.6.4.
- [Commits](mebigfatguy/fb-contrib@v7.6.3...v7.6.4)

---
updated-dependencies:
- dependency-name: com.mebigfatguy.fb-contrib:fb-contrib
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

graylog-project-parent/pom.xml

@@ -673,7 +673,7 @@
                                 <plugin>
                                     <groupId>com.mebigfatguy.fb-contrib</groupId>
                                     <artifactId>fb-contrib</artifactId>
-                                    <version>7.6.3</version>
+                                    <version>7.6.4</version>
                                 </plugin>
                             </plugins>
                         </configuration>