MM-58253 Ensure remotes can only update users belonging to them (#27290)

* - ensure new users get correct remoteID
- ensure remotes can only update users belonging to them
- ensure user remoteIDs cannot be changed once set

* make modules-tidy

---------

Co-authored-by: Mattermost Build <build@mattermost.com>

server/go.sum

@@ -356,8 +356,8 @@ github.com/mattermost/ldap v0.0.0-20231116144001-0f480c025956 h1:Y1Tu/swM31pVwwb
 github.com/mattermost/ldap v0.0.0-20231116144001-0f480c025956/go.mod h1:SRl30Lb7/QoYyohYeVBuqYvvmXSZJxZgiV3Zf6VbxjI=
 github.com/mattermost/logr/v2 v2.0.21 h1:CMHsP+nrbRlEC4g7BwOk1GAnMtHkniFhlSQPXy52be4=
 github.com/mattermost/logr/v2 v2.0.21/go.mod h1:kZkB/zqKL9e+RY5gB3vGpsyenC+TpuiOenjMkvJJbzc=
-github.com/mattermost/mattermost/server/public v0.1.0 h1:64o/Ie8vXVNrgmBJxh9rFXbNQ+kV7+BQo/XT9u0GX8E=
-github.com/mattermost/mattermost/server/public v0.1.0/go.mod h1:WeqCPudYLqk4HjjGvCMJwhtHMVvcNUTHIbrLmLjAD+4=
+github.com/mattermost/mattermost/server/public v0.1.4 h1:goP0DbsrKTS79Sh0ozHRU/CGScaxU9FEaWbhanslCCc=
+github.com/mattermost/mattermost/server/public v0.1.4/go.mod h1:PDPb/iqzJJ5ZvK/m70oDF55AXN/cOvVFj96Yu4e6j+Q=
 github.com/mattermost/morph v1.1.0 h1:Q9vrJbeM3s2jfweGheq12EFIzdNp9a/6IovcbvOQ6Cw=
 github.com/mattermost/morph v1.1.0/go.mod h1:gD+EaqX2UMyyuzmF4PFh4r33XneQ8Nzi+0E8nXjMa3A=
 github.com/mattermost/rsc v0.0.0-20160330161541-bbaefb05eaa0 h1:G9tL6JXRBMzjuD1kkBtcnd42kUiT6QDwxfFYu7adM6o=