Cypress>=3.3.1 readFile() does not expect a relative file-path starting with /

See:
https://github.com/cypress-io/cypress/issues/4352#issuecomment-507963062

Issue-ID: VID-687
Change-Id: I4f3292e80d22d217d9bd33c685766efd5a8f4d8f
Signed-off-by: Ittay Stern <ittay.stern@att.com>
diff --git a/vid-webpack-master/cypress/integration/iFrames/instantiationStatus.e2e.ts b/vid-webpack-master/cypress/integration/iFrames/instantiationStatus.e2e.ts
index b358ad2..90dbcdd 100644
--- a/vid-webpack-master/cypress/integration/iFrames/instantiationStatus.e2e.ts
+++ b/vid-webpack-master/cypress/integration/iFrames/instantiationStatus.e2e.ts
@@ -16,7 +16,7 @@
       cy.preventErrorsOnLoading();
       cy.initAAIMock();
       cy.initVidMock();
-      jsonBuilderInstantiationBuilder.basicMock('/cypress/support/jsonBuilders/mocks/jsons/asyncInstantiation.json',
+      jsonBuilderInstantiationBuilder.basicMock('cypress/support/jsonBuilders/mocks/jsons/asyncInstantiation.json',
         Cypress.config('baseUrl') + "/asyncInstantiation**",
         (res: any) => {
             asyncRes = res;
@@ -90,5 +90,5 @@
         cy.get('.dropdown-menu').find('.disabled').find(`[data-tests-id='context-menu-hide']`).should('not.exist');
         cy.get('.dropdown-menu').find('.disabled').find(`[data-tests-id='context-menu-audit-info']`).should('not.exist');
   });
-  
+
 });