Fix typo in Kubernetes GKE setup error message

app/views/clusters/clusters/gcp/_gcp_not_configured.html.haml

 - documentation_link_start = '<a href="%{url}" target="_blank" rel="noopener noreferrer">'.html_safe % { url: help_page_path("integration/google") }
 - link_end = '<a/>'.html_safe
-= s_('Google authentication is not %{link_start}property configured%{link_end}. Ask your GitLab administrator if you want to use this service.').html_safe % { link_start: documentation_link_start, link_end: link_end }
+= s_('Google authentication is not %{link_start}properly configured%{link_end}. Ask your GitLab administrator if you want to use this service.').html_safe % { link_start: documentation_link_start, link_end: link_end }

ee/changelogs/unreleased/37411-typo-kubernetes-gke-setup-error-message-shows-property-connected.yml

+---
+title: Fix typo in Kubernetes GKE setup error message
+merge_request: 21091
+author:
+type: fixed

locale/gitlab.pot

@@ -8578,7 +8578,7 @@ msgstr ""
 msgid "Google Takeout"
 msgstr ""
 
-msgid "Google authentication is not %{link_start}property configured%{link_end}. Ask your GitLab administrator if you want to use this service."
+msgid "Google authentication is not %{link_start}properly configured%{link_end}. Ask your GitLab administrator if you want to use this service."
 msgstr ""
 
 msgid "Got it"