Bump workflow-cps-plugin.version from 2.87 to 2.88 in /bom-latest (#430)

Bumps `workflow-cps-plugin.version` from 2.87 to 2.88.

Updates `workflow-cps` from 2.87 to 2.88
- [Release notes](https://github.com/jenkinsci/workflow-cps-plugin/releases)
- [Changelog](https://github.com/jenkinsci/workflow-cps-plugin/blob/master/CHANGELOG.md)
- [Commits](jenkinsci/workflow-cps-plugin@workflow-cps-2.87...workflow-cps-2.88)

Updates `workflow-cps` from 2.87 to 2.88
- [Release notes](https://github.com/jenkinsci/workflow-cps-plugin/releases)
- [Changelog](https://github.com/jenkinsci/workflow-cps-plugin/blob/master/CHANGELOG.md)
- [Commits](jenkinsci/workflow-cps-plugin@workflow-cps-2.87...workflow-cps-2.88)

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

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

bom-latest/pom.xml

@@ -16,7 +16,7 @@
         <scm-api-plugin.version>2.6.4</scm-api-plugin.version>
         <structs-plugin.version>1.21</structs-plugin.version>
         <workflow-api-plugin.version>2.41</workflow-api-plugin.version>
-        <workflow-cps-plugin.version>2.87</workflow-cps-plugin.version>
+        <workflow-cps-plugin.version>2.88</workflow-cps-plugin.version>
         <workflow-job-plugin.version>2.40</workflow-job-plugin.version>
         <workflow-multibranch-plugin.version>2.22</workflow-multibranch-plugin.version>
         <workflow-step-api-plugin.version>2.23</workflow-step-api-plugin.version>