Remove SCIM beta tag (#2129)

SCIM has been generally available for a long time. This drops the beta
callout on the SCIM page, the `(Beta)` marker in the admin index, and
the "experimental" wording on the Cloud page (which also now says
"Microsoft Entra ID" instead of "Azure AD", matching the SCIM page).

The "only tested against Okta and Microsoft Entra ID" caveat from the
removed callout is already covered by the remaining note on the SCIM
page.

Closes SVC-2263

Co-authored-by: Amp <amp@ampcode.com>

Author: pjlast

docs/admin/index.mdx

@@ -40,7 +40,7 @@ Sourcegraph administration is primarily managed by administrators, who are respo
     -   [HTTP authentication proxy](/admin/auth/#http-authentication-proxies)
     -   [SAML config](/admin/auth/saml/)
     -   [User data deletion](/admin/user-data-deletion)
--   [Provision users through SCIM](/admin/scim) (Beta)
+-   [Provision users through SCIM](/admin/scim)
 -   [Code host configuration](/admin/code-hosts/)
 -   [Add Git repositories](/admin/repo/add) (from a code host or clone URL)
     -   [Monorepo](/admin/monorepo)

docs/admin/scim.mdx

@@ -1,13 +1,5 @@
 # SCIM
 
-<Callout type="info">
-	This feature is in beta while we're testing it with more IdPs. Our
-	implementation complies with the SCIM 2.0 specification, and passes the
-	validator for Okta and Microsoft Entra ID. But implementations might differ
-	on the side of IdPs and validators don't give a 100% coverage, so we can't
-	guarantee that our solution works with all IdPs in every case.
-</Callout>
-
 SCIM (System for Cross-domain Identity Management) is a standard for provisioning and deprovisioning users and groups in an organization. IdPs (identity providers) like Okta, OneLogin, and Microsoft Entra ID support provisioning users through SCIM.
 
 Sourcegraph supports SCIM 2.0 for provisioning and de-provisioning _users_.

docs/cloud/index.mdx

@@ -255,7 +255,7 @@ Customer source code is stored in an isolated GCP project dedicated to the custo
 
 ### How to protect access to Sourcegraph Cloud instances?
 
-Sourcegraph supports most well-known [identity providers](/admin/auth/) and integrates with customers’ existing Single Sign-On (SSO) solutions. Experimental support for [SCIM](/admin/scim) is also available for Azure AD and Okta.
+Sourcegraph supports most well-known [identity providers](/admin/auth/) and integrates with customers’ existing Single Sign-On (SSO) solutions. [SCIM](/admin/scim) user provisioning is also available for Microsoft Entra ID and Okta.
 
 Optionally, access to Cloud instances can be restricted to a list of IP addresses and ranges customers provide.