Bump credentials from 2.3.14 to 2.3.15 in /bom-latest (#427)

Bumps [credentials](https://github.com/jenkinsci/credentials-plugin) from 2.3.14 to 2.3.15.
- [Release notes](https://github.com/jenkinsci/credentials-plugin/releases)
- [Changelog](https://github.com/jenkinsci/credentials-plugin/blob/master/CHANGELOG.md)
- [Commits](jenkinsci/credentials-plugin@credentials-2.3.14...credentials-2.3.15)

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

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

bom-latest/pom.xml

@@ -195,7 +195,7 @@
             <dependency>
                 <groupId>org.jenkins-ci.plugins</groupId>
                 <artifactId>credentials</artifactId>
-                <version>2.3.14</version>
+                <version>2.3.15</version>
             </dependency>
             <dependency>
                 <groupId>org.jenkins-ci.plugins</groupId>