Replace go-migrate with morph (#19116)

db/migrations/postgres/000007_create_user_groups.up.sql

@@ -0,0 +1,18 @@
+CREATE TABLE IF NOT EXISTS usergroups (
+    id VARCHAR(26) PRIMARY KEY,
+    name VARCHAR(64),
+    displayname VARCHAR(128),
+    description VARCHAR(1024),
+    source VARCHAR(64),
+    remoteid VARCHAR(48),
+    createat bigint,
+    updateat bigint,
+    deleteat bigint,
+    allowreference bool,
+    UNIQUE(name),
+    UNIQUE(source, remoteid)
+);
+
+ALTER TABLE usergroups ADD COLUMN IF NOT EXISTS allowreference bool;
+CREATE INDEX IF NOT EXISTS idx_usergroups_remote_id ON usergroups (remoteid);
+CREATE INDEX IF NOT EXISTS idx_usergroups_delete_at ON usergroups (deleteat);