Do not call GetAccounts with empty filters

Issue: ZENKO-4838

Author: williamlardier

tests/ctst/steps/iam-policies/common.ts

@@ -34,7 +34,12 @@ When('the user tries to perform vault auth {string}', async function (this: Zenk
 
     switch (action) {
     case 'GetAccountInfo':
-        this.setResult(await VaultAuth.getAccounts(null, null, null, {}, vaultAuthClientOptions) as Command);
+        this.setResult(await VaultAuth.getAccounts([
+            this.getSaved<string>('accountNameForScenario') || this.parameters.AccountName,
+        ], null, null, {
+            // @ts-expect-error accountNames is not generated by CTST yet
+            accountNames: true,
+        }, vaultAuthClientOptions) as Command);
         break;
     default:
         throw new Error(`Action ${action} is not supported`);