Update product group to authentication

The group 'access' was renamed first to 'auth' and
then to 'authentication'

ee/config/metrics/counts_28d/20210216180820_ldap_keys.yml

@@ -4,7 +4,7 @@ key_path: usage_activity_by_stage_monthly.manage.ldap_keys
 description: Number of users creating keys synced as part of LDAP for last 28 days.
 product_section: dev
 product_stage: manage
-product_group: acess
+product_group: authentication
 value_type: number
 status: active
 time_frame: 28d

ee/config/metrics/settings/20210216180829_ldap_group_sync_enabled.yml

@@ -4,7 +4,7 @@ key_path: usage_activity_by_stage_monthly.manage.ldap_group_sync_enabled
 description: Has the instance configured [LDAP Group Sync](https://docs.gitlab.com/ee/administration/auth/ldap/#group-sync)
 product_section: dev
 product_stage: manage
-product_group: acess
+product_group: authentication
 value_type: boolean
 status: active
 time_frame: none

ee/config/metrics/settings/20210216180833_group_saml_enabled.yml

@@ -4,7 +4,7 @@ key_path: usage_activity_by_stage_monthly.manage.group_saml_enabled
 description: Whether group SAML is enabled
 product_section: dev
 product_stage: manage
-product_group: access
+product_group: authentication
 value_type: boolean
 status: active
 time_frame: none