Make members badge Pajamas compliant

This commit changes the badge within the members badge from
applying manual css-classes to using the new, Pajamas compliant
helper.

app/views/shared/members/_badge.html.haml

-- type ||= 'info'
+- variant ||= :info
 
 %span.px-1.py-1
-  %span{ class: "badge badge-pill gl-badge sm badge-#{type}" }= yield
+  = gl_badge_tag yield, variant: variant, size: :sm

app/views/shared/members/_blocked_badge.html.haml

 - if user.blocked?
-  = render 'shared/members/badge', type: 'danger' do
+  = render 'shared/members/badge', variant: :danger do
     = _("Blocked")

app/views/shared/members/_its_you_badge.html.haml

 - if user == current_user
-  = render 'shared/members/badge', type: 'success' do
+  = render 'shared/members/badge', variant: :success do
     = _("It's you")

app/views/shared/members/_two_factor_auth_badge.html.haml

 - if user.two_factor_enabled?
-  = render 'shared/members/badge', type: 'info' do
+  = render 'shared/members/badge', variant: :info do
     = _("2FA")

ee/app/views/shared/members/ee/_gma_badge.html.haml

 - if member.group_managed_account?
-  = render 'shared/members/badge', type: 'info' do
+  = render 'shared/members/badge', variant: :info do
     = _('Managed Account')

ee/app/views/shared/members/ee/_license_badge.html.haml

 - if group.present? && current_user_is_group_owner && user.using_gitlab_com_seat?(group)
-  = render 'shared/members/badge', type: 'neutral' do
+  = render 'shared/members/badge', variant: :neutral do
     = _("Is using seat")

ee/app/views/shared/members/ee/_sso_badge.html.haml

 - if member.group_sso?
-  = render 'shared/members/badge', type: 'info' do
+  = render 'shared/members/badge', variant: :info do
     SAML