test: Add common method to delete app via api (#27923)

## Description
Adds cypress method to delete app via api and updated git test.

## Testing
locally

#### Test Plan
> Add Testsmith test cases links that relate to this PR
>
>
#### Issues raised during DP testing
> Link issues raised during DP testing for better visiblity and tracking
(copy link from comments dropped on this PR)
>
>
>
## Checklist:
#### Dev activity
- [ ] My code follows the style guidelines of this project
- [ ] I have performed a self-review of my own code
- [ ] I have commented my code, particularly in hard-to-understand areas
- [ ] I have made corresponding changes to the documentation
- [ ] My changes generate no new warnings
- [ ] I have added tests that prove my fix is effective or that my
feature works
- [ ] New and existing unit tests pass locally with my changes
- [ ] PR is being merged under a feature flag


#### QA activity:
- [ ] [Speedbreak
features](https://github.com/appsmithorg/TestSmith/wiki/Guidelines-for-test-plans#speedbreakers-)
have been covered
- [ ] Test plan covers all impacted features and [areas of
interest](https://github.com/appsmithorg/TestSmith/wiki/Guidelines-for-test-plans#areas-of-interest-)
- [ ] Test plan has been peer reviewed by project stakeholders and other
QA members
- [ ] Manually tested functionality on DP
- [ ] We had an implementation alignment call with stakeholders post QA
Round 2
- [ ] Cypress test cases have been added and approved by SDET/manual QA
- [ ] Added `Test Plan Approved` label after Cypress tests were reviewed
- [ ] Added `Test Plan Approved` label after JUnit tests were reviewed

---------

Co-authored-by: Aishwarya UR <aishwarya@appsmith.com>

app/client/cypress/e2e/Regression/ClientSide/Git/GitSync/RepoLimitExceededErrorModal_spec.js

@@ -92,26 +92,10 @@ describe("Repo Limit Exceeded Error Modal", function () {
   });
 
   after(() => {
-    cy.request({
-      method: "DELETE",
-      url: "api/v1/applications/" + repoName1,
-      failOnStatusCode: false,
-    });
-    cy.request({
-      method: "DELETE",
-      url: "api/v1/applications/" + repoName2,
-      failOnStatusCode: false,
-    });
-    cy.request({
-      method: "DELETE",
-      url: "api/v1/applications/" + repoName3,
-      failOnStatusCode: false,
-    });
-    cy.request({
-      method: "DELETE",
-      url: "api/v1/applications/" + repoName4,
-      failOnStatusCode: false,
-    });
+    homePage.DeleteAppviaAPI(repoName1);
+    homePage.DeleteAppviaAPI(repoName2);
+    homePage.DeleteAppviaAPI(repoName3);
+    homePage.DeleteAppviaAPI(repoName4);
     gitSync.DeleteTestGithubRepo(repoName1);
     gitSync.DeleteTestGithubRepo(repoName2);
     gitSync.DeleteTestGithubRepo(repoName3);

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

@@ -623,6 +623,17 @@ export class HomePage {
     this.agHelper.WaitUntilToastDisappear("Deleting application...");
   }
 
+  public DeleteAppviaAPI(appId: any) {
+    cy.request({
+      method: "DELETE",
+      url: "api/v1/applications/" + appId,
+      failOnStatusCode: false,
+      headers: {
+        "X-Requested-By": "Appsmith",
+      },
+    });
+  }
+
   //Maps to leaveworkspace in command.js
   public LeaveWorkspace(workspaceName: string) {
     this.OpenWorkspaceOptions(workspaceName);