test: Cypress - Flaky fix (#22248)

## Description

- This PR fixes below flaky test in CI - by improving the
EnterActionValue() agHelper metod:
- setInterval_spec.js


## Type of change

- Script fix (non-breaking change which fixes CI failure)


## How Has This Been Tested?

- Cypress local run

## Checklist:
### QA activity:
- [X] Added Test Plan Approved label after reviewing all changes

app/client/cypress/support/Pages/AggregateHelper.ts

@@ -467,9 +467,20 @@ export class AggregateHelper {
     cy.xpath(this.locator._actionTextArea(actionName))
       .eq(index)
       .scrollIntoView()
-      .focus()
+      .parents(".CodeMirror")
-      .type("{uparrow}", { force: true })
+      .first()
-      .type("{ctrl}{shift}{downarrow}{del}", { force: true });
+      .then((ins: any) => {
+        const input = ins[0].CodeMirror;
+        input.focus();
+        this.Sleep(200);
+        input.setValue("");
+        this.Sleep(200);
+      });
+
+    //Not working consistenly, hence commenting
+    // .focus()
+    // .type("{uparrow}", { force: true })
+    // .type("{ctrl}{shift}{downarrow}{del}", { force: true });
     cy.focused().then(($cm: any) => {
       if ($cm.contents != "") {
         cy.log("The field is not empty");