Cypress. Update test "Check if image was scaled to ROI". Add check "cancel". (#3205)

* Update case 7 for increase code coverage

* Minor fix

tests/cypress/integration/actions_tasks3/case_7_image_scale_roi.js

@@ -35,6 +35,8 @@ context('Check if image was scaled to ROI', () => {
                     scaleAfter = Number($scale.match(/scale\((\d\.\d+)\)/m)[1]);
                     cy.expect(scaleAfter).to.be.greaterThan(scaleBefore);
                 });
+            cy.get('body').type('{Esc}'); // cvat-canvas/src/typescript/zoomHandler.ts "public cancel():"
+            cy.get('.cvat-cursor-control').should('have.class', 'cvat-active-canvas-control');
         });
     });
 });