refactor(db): applies consistent formatting to 'comment on' statements

internal/db/assert/asserts_test.go

@@ -137,7 +137,7 @@ check(
   length(trim(value)) > 10
 );
 comment on domain dbasserts_public_id is
-'dbasserts test domain type';
+  'dbasserts test domain type';
 `
 		createTable = `
 create table if not exists test_table_dbasserts (
@@ -147,7 +147,7 @@ create table if not exists test_table_dbasserts (
   type_int int
 );
 comment on table test_table_dbasserts is
-'dbasserts test table'
+  'dbasserts test table'
 `
 	)
 	rw := db.New(d)