fix(query): add user metadata projection (#3021)

* fix: add metadata projection

* cleanup

migrations/cockroach/V1.106__user_metadata.sql

@@ -0,0 +1,13 @@
+CREATE TABLE zitadel.projections.user_metadata (
+    user_id STRING NOT NULL
+    , resource_owner STRING NOT NULL
+    , creation_date TIMESTAMPTZ NOT NULL
+    , change_date TIMESTAMPTZ NOT NULL
+    , sequence INT8 NOT NULL
+    
+    , key STRING NOT NULL
+    , value BYTES
+
+    , PRIMARY KEY (user_id, key)
+    , INDEX idx_ro (resource_owner)
+);