Fix enum zero validation test auto-increment expectations

Added explicit auto_increment = 1 to reset sequence for test reliability
in integration environments. This ensures the test gets expected InsertID
values regardless of previous test state.

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <[email protected]>

Author: elianddb

enginetest/queries/insert_queries.go

@@ -2854,6 +2854,7 @@ var InsertIgnoreScripts = []ScriptTest{
 		Name: "issue 9425: 0 value is not allowed for enum in strict mode",
 		SetUpScript: []string{
 			"create table enum_zero_test (id int auto_increment primary key, enum_col enum('apple','banana','cherry'))",
+			"alter table enum_zero_test auto_increment = 1",
 		},
 		Assertions: []ScriptTestAssertion{
 			{