feat(coderd): store workspace proxy version in the database (#10790)

Stores workspace proxy version in database upon registration.

enterprise/coderd/proxyhealth/proxyhealth_test.go

@@ -31,6 +31,7 @@ func insertProxy(t *testing.T, db database.Store, url string) database.Workspace
 		Url:              url,
 		WildcardHostname: "",
 		ID:               proxy.ID,
+		Version:          `v2.34.5-test+beefcake`,
 	})
 	require.NoError(t, err, "failed to update proxy")
 	return proxy

enterprise/coderd/workspaceproxy.go

@@ -625,6 +625,7 @@ func (api *API) workspaceProxyRegister(rw http.ResponseWriter, r *http.Request)
 			DerpEnabled:      req.DerpEnabled,
 			DerpOnly:         req.DerpOnly,
 			WildcardHostname: req.WildcardHostname,
+			Version:          req.Version,
 		})
 		if err != nil {
 			return xerrors.Errorf("register workspace proxy: %w", err)
@@ -951,6 +952,7 @@ func convertProxy(p database.WorkspaceProxy, status proxyhealth.ProxyStatus) cod
 		CreatedAt:   p.CreatedAt,
 		UpdatedAt:   p.UpdatedAt,
 		Deleted:     p.Deleted,
+		Version:     p.Version,
 		Status: codersdk.WorkspaceProxyStatus{
 			Status:    codersdk.ProxyHealthStatus(status.Status),
 			Report:    status.Report,