Promote openldap-mac (#61332)

* Replace `openldap` with `openldap-mac`

* Rename all references for `openldap-mac`

* Rename prepopulated users with first names

devenv/docker/blocks/auth/openldap/README.md

@@ -0,0 +1,56 @@
+# OpenLDAP for MacOS Docker Block
+
+This Docker block is an updated version from [OpenLDAP](../openldap/) block. This Docker block uses `osixia/openldap` image. The original Docker block was based of `debian:jessie` which is not available for Apple's ARM chip. 
+
+## Deployment
+
+First build and deploy the `openldap` container.
+
+```bash
+make devenv sources=auth/openldap
+```
+
+### Exposed ports
+
+The container will expose port `389` and `636`.
+
+### Background services
+
+The `osixia/openldap` container will update the database with any `*.ldif` file changes inside `./prepopulate` and the `./modules` folder. Remember to rebuild the `devenv` to apply any changes.
+
+## Grafana configuration changes
+
+The following changes are needed at Grafana's configuration file.
+
+```ini
+[auth.ldap]
+enabled = true
+config_file = conf/ldap.toml
+```
+
+The default configuration between Grafana and the OpenLDAP container is configured at [../../../../../conf/ldap.toml](../../../../../conf/ldap.toml).
+
+## Available users and groups
+
+- admins
+  - ldap-admin
+  - ldap-torkel
+- backend
+  - ldap-carl
+  - ldap-torkel
+  - ldap-leo
+- frontend
+  - ldap-torkel
+  - ldap-tobias
+  - ldap-daniel
+- editors
+  - ldap-editors
+- no groups
+  - ldap-viewer
+
+## Groups & Users (POSIX)
+
+- admins
+  - ldap-posix-admin
+- no groups
+  - ldap-posix