Walk doesn't traverse with clause

[yilinjuang]

Since withClause has type WithClause and walk only handles Node type, the entire withClause is skipped.

pgsql-parser/packages/traverse/src/17/runtime-schema.ts

Lines 8514 to 8519 in 7e4343a

	{
	name: 'withClause',
	type: 'WithClause',
	isArray: false,
	optional: true
	}

pgsql-parser/packages/traverse/src/traverse.ts

Lines 72 to 83 in 7e4343a

	for (const field of nodeSpec.fields) {
	if (field.type === 'Node' && nodeData[field.name] != null) {
	const value = nodeData[field.name];
	if (field.isArray && Array.isArray(value)) {
	value.forEach((item, index) => {
	walk(item, actualCallback, path, [...path.keyPath, field.name, index]);
	});
	} else if (!field.isArray) {
	walk(value, actualCallback, path, [...path.keyPath, field.name]);
	}
	}
	}

Same issue applies to union larg and rarg.

Expected behavior

Walk should traverse with clause and union.

Actual behavior

Walk skips with clause and union.

[pyramation]

thank you! Super happy to take a PR for this :)