Replace go-migrate with morph (#19116)

db/migrations/postgres/000017_create_roles.up.sql

@@ -0,0 +1,19 @@
+CREATE TABLE IF NOT EXISTS roles (
+    id VARCHAR(26) PRIMARY KEY,
+    name VARCHAR(64),
+    displayname VARCHAR(128),
+    description VARCHAR(1024),
+    createat bigint,
+    updateat bigint,
+    deleteat bigint,
+    permissions VARCHAR(4096),
+    schememanaged boolean,
+    UNIQUE(name)
+);
+
+ALTER TABLE roles ADD COLUMN IF NOT EXISTS builtin boolean;
+
+UPDATE Roles SET SchemeManaged = false
+WHERE Name NOT IN ('system_user', 'system_admin', 'team_user', 'team_admin', 'channel_user', 'channel_admin');
+
+ALTER TABLE roles ALTER COLUMN permissions TYPE TEXT;