fix(GlBadge): Pass aria label through if any

mentioned in commit 07a8a43b

mentioned in merge request gitlab-org/frontend/pajamas-adoption-scanner!273 (merged)

mentioned in merge request status-page!893 (merged)

mentioned in merge request gitlab-org/frontend/playground/accessibility-scanner!24 (merged)

mentioned in merge request gitlab!143271 (merged)

mentioned in merge request gitlab!143655 (merged)

mentioned in merge request gitlab-docs!4576 (closed)

mentioned in merge request gitlab-org/gitlab-services/design.gitlab.com!3723 (merged)

mentioned in merge request gitlab-docs!4577 (closed)

mentioned in merge request gitlab-docs!4578 (closed)

mentioned in merge request gitlab-org/gitlab-services/design.gitlab.com!3733 (closed)

mentioned in merge request gitlab-org/gitlab-services/design.gitlab.com!3734 (merged)

mentioned in merge request gitlab-org/frontend/playground/accessibility-scanner!25 (merged)

mentioned in merge request gitlab-org/frontend/playground/accessibility-scanner!26 (closed)