Resolve "Modify links so that labels with spaces are handled"

Issue #35 (closed)

Updated the links in the erb templates for listing issues to handle spaces in the URL. The links for the Global Search team were not working due to a space in the label name.

Tested locally with a dry run for the search team

bundle exec ruby retrospective.rb update --dry-run --token="TOKEN_HERE" --team=Search

output

No missed deliverables found; great job!

[More issues]: https://gitlab.com/groups/gitlab-org/-/issues?state=closed&label_name[]=group%3A%3Aglobal%20search&milestone_title=13.1
[Issues that slipped]: https://gitlab.com/groups/gitlab-org/-/issues?label_name[]=group%3A%3Aglobal%20search&label_name[]=missed%3A13.1
[Open follow-up issues from previous retros]: https://gitlab.com/gl-retrospectives/search-team/issues?label_name[]=follow-up