Add optional .ansible to regex

Added optional `.ansible` to regex, and merged all regex's into one.

lib/modules/manager/ansible-galaxy/index.ts

@@ -8,7 +8,7 @@ export { extractPackageFile } from './extract';
 export const categories: Category[] = ['ansible', 'iac'];
 
 export const defaultConfig = {
-  fileMatch: ['(^|/)requirements\\.ya?ml$', '(^|/)galaxy\\.ya?ml$'],
+  fileMatch: ['(^|/)(galaxy|requirements)(\\.ansible)?\\.ya?ml$'],
 };
 
 export const supportedDatasources = [