Bump docker-fixtures from 166.v912b_95083ffe to 178.v2c7d2343886b_ (#259

)

Bumps [docker-fixtures](https://github.com/jenkinsci/docker-fixtures) from 166.v912b_95083ffe to 178.v2c7d2343886b_.
- [Release notes](https://github.com/jenkinsci/docker-fixtures/releases)
- [Changelog](https://github.com/jenkinsci/docker-fixtures/blob/master/old-changelog.md)
- [Commits](https://github.com/jenkinsci/docker-fixtures/commits)

---
updated-dependencies:
- dependency-name: org.jenkins-ci.test:docker-fixtures
  dependency-type: direct:development
...

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

pom.xml

@@ -133,7 +133,7 @@
         <dependency>
             <groupId>org.jenkins-ci.test</groupId>
             <artifactId>docker-fixtures</artifactId>
-            <version>166.v912b_95083ffe</version>
+            <version>178.v2c7d2343886b_</version>
             <scope>test</scope>
             <exclusions>
                 <exclusion>