fix: allow proxy version mismatch (with warning) (#12433)

docs/admin/healthcheck.md

@@ -246,18 +246,6 @@ from the database.
 **Solution:** This may be a transient issue. If it persists, it could signify an
 issue with Coder's configured database.
 
-### EWP03
-
-_Workspace Proxy Version Mismatch_
-
-**Problem:** One or more workspace proxies are more than one major or minor
-version out of date with the main deployment. It is important that workspace
-proxies are updated at the same time as the main deployment to minimize the risk
-of API incompatibility.
-
-**Solution:** Update the workspace proxy to match the currently running version
-of Coder.
-
 ### EWP04
 
 _One or more Workspace Proxies Unhealthy_

docs/api/schemas.md

@@ -8411,7 +8411,6 @@ If the schedule is empty, the user will be updated to use the default schedule.|
 | `EUNKNOWN` |
 | `EWP01`    |
 | `EWP02`    |
-| `EWP03`    |
 | `EWP04`    |
 | `EDB01`    |
 | `EDB02`    |