Bump symbol-annotation from 1.1 to 1.21 (#5265)
Bump symbol-annotation from 1.1 to 1.21 (#5265)

Bumps [symbol-annotation](https://github.com/jenkinsci/structs-plugin) from 1.1 to 1.21.
- [Release notes](https://github.com/jenkinsci/structs-plugin/releases)
- [Changelog](https://github.com/jenkinsci/structs-plugin/blob/master/CHANGELOG.md)
- [Commits](https://github.com/jenkinsci/structs-plugin/compare/structs-parent-1.1...structs-parent-1.21)

Signed-off-by: dependabot[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@github.com>

Co-authored-by: dependabot[bot] <1c358da00a777d4e9898c1280ab801e2df165188@users.noreply.github.com>
jenkinsci/jenkins,ikedam/jenkins,ikedam/jenkins,rsandell/jenkins,jenkinsci/jenkins,jenkinsci/jenkins,v1v/jenkins,daniel-beck/jenkins,rsandell/jenkins,viqueen/jenkins,viqueen/jenkins,v1v/jenkins,jenkinsci/jenkins,rsandell/jenkins,damianszczepanik/jenkins,ikedam/jenkins,damianszczepanik/jenkins,daniel-beck/jenkins,pjanouse/jenkins,MarkEWaite/jenkins,damianszczepanik/jenkins,v1v/jenkins,ikedam/jenkins,MarkEWaite/jenkins,rsandell/jenkins,MarkEWaite/jenkins,jenkinsci/jenkins,jenkinsci/jenkins,rsandell/jenkins,damianszczepanik/jenkins,rsandell/jenkins,v1v/jenkins,daniel-beck/jenkins,MarkEWaite/jenkins,viqueen/jenkins,ikedam/jenkins,MarkEWaite/jenkins,MarkEWaite/jenkins,pjanouse/jenkins,daniel-beck/jenkins,pjanouse/jenkins,v1v/jenkins,ikedam/jenkins,jenkinsci/jenkins,ikedam/jenkins,MarkEWaite/jenkins,rsandell/jenkins,viqueen/jenkins,jenkinsci/jenkins,v1v/jenkins,pjanouse/jenkins,viqueen/jenkins,v1v/jenkins,damianszczepanik/jenkins,pjanouse/jenkins,viqueen/jenkins,damianszczepanik/jenkins,damianszczepanik/jenkins,ikedam/jenkins,daniel-beck/jenkins,viqueen/jenkins,daniel-beck/jenkins,pjanouse/jenkins,daniel-beck/jenkins,daniel-beck/jenkins,MarkEWaite/jenkins,pjanouse/jenkins,damianszczepanik/jenkins,rsandell/jenkins