Bump org.jenkins-ci.plugins:ssh-credentials in /bom-weekly (#3408)

Bumps [org.jenkins-ci.plugins:ssh-credentials](https://github.com/jenkinsci/ssh-credentials-plugin) from 337.v395d2403ccd4 to 343.v884f71d78167.
- [Release notes](https://github.com/jenkinsci/ssh-credentials-plugin/releases)
- [Changelog](https://github.com/jenkinsci/ssh-credentials-plugin/blob/master/CHANGELOG.md)
- [Commits](https://github.com/jenkinsci/ssh-credentials-plugin/commits)

---
updated-dependencies:
- dependency-name: org.jenkins-ci.plugins:ssh-credentials
  dependency-type: direct:production
...

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

Author: dependabot[bot]

bom-weekly/pom.xml

@@ -984,7 +984,7 @@
       <dependency>
         <groupId>org.jenkins-ci.plugins</groupId>
         <artifactId>ssh-credentials</artifactId>
-        <version>337.v395d2403ccd4</version>
+        <version>343.v884f71d78167</version>
       </dependency>
       <dependency>
         <groupId>org.jenkins-ci.plugins</groupId>