feat(amplify-cli-core): allow * in account and region in arn for cust…

…om policies (aws-amplify#8722)

packages/amplify-cli-core/src/customPoliciesUtils.ts

@@ -116,7 +116,9 @@ function validateCustomPolicies(data: CustomIAMPolicies, categoryName: string, r
   for (const customPolicy of data) {
     const resources = customPolicy.Resource;
     const actions = customPolicy.Action;
-    const resourceRegex = new RegExp('arn:(aws[a-zA-Z0-9-]*):([a-zA-Z0-9\\-])+:([a-z]{2}(-gov)?-[a-z]+-\\d{1})?:(\\d{12})?:(.*)');
+    const resourceRegex = new RegExp(
+      'arn:(aws[a-zA-Z0-9-]*):([a-zA-Z0-9\\-])+:(([a-z]{2}|\\*)(-gov)?-[a-z-*]+-(\\d{1}|\\*)|\\*)?:(\\d{12}|\\*)?:(.*)',
+    );
     const actionRegex = new RegExp('[a-zA-Z0-9]+:[a-z|A-Z|0-9|*]+');
     const wrongResourcesRegex = [];
     const wrongActionsRegex = [];