fix: update uid encryption key fallback

internal/httpapi/uid.go

@@ -14,7 +14,7 @@ import (
 
 type userID int64
 
-const defaultUIDKey = "la6YsO+bNX/+XIkOqc5Svw=="
+const defaultUIDKey = "dkXxWLwqUNRfYmdXRzOkZw=="
 
 var (
 	uidCodecMu sync.RWMutex

internal/httpapi/uid_test.go

@@ -24,7 +24,7 @@ func TestUserIDJSONAcceptsIMUserID(t *testing.T) {
 
 func TestUserIDCodecMatchesIMServer(t *testing.T) {
 	const (
-		publicID = "usrOj2NWDNdlMU"
+		publicID = "usr3rZjh8TD_34"
 		dbID     = int64(1574592702383656960)
 	)
 	got, err := parseUserID(publicID)