chore(release): 3.91.0 [skip ci]

# [3.91.0]
## Changes
  - Removed illustration 'alert-management-empty-state'
  - Removed illustration 'cluster_popover'
  - Removed illustration 'empty-state-agents'
  - Removed illustration 'empty-terraform-register-lg'
  - Removed illustration 'geo-empty'
  - Removed illustration 'geo-replication-empty'
  - Removed illustration 'incident-empty-state'
  - Removed illustration 'no_commits'
  - Removed illustration 'pipelines_failed'
  - Removed illustration 'profile_private_mode'
  - Removed illustration 'service_desk_callout'

package.json

 {
   "name": "@gitlab/svgs",
-  "version": "3.90.0",
+  "version": "3.91.0",
   "description": "SVG Assets for GitLab",
   "main": "./index.js",
   "repository": "git@gitlab.com:gitlab-org/gitlab-svgs.git",