Fix test not working due to changes on Grafana

Last Grafana's version updated some controls at the login page and our
tests were unable to run. This commit updates the selectors on our test
suite

CMK-15488

Author: lpetrora

tests/cypress/support/commands.ts

@@ -37,7 +37,7 @@ Cypress.Commands.add('addCmkDatasource', (cmkUser: string, cmkPass: string, edit
   cy.visit('/datasources/new');
   cy.get(GrafanaSelectors.AddDataSource.select_datasource_button('Checkmk')).contains('Checkmk').click();
 
-  cy.get(CheckMkSelectors.SetupForm.name).type(' ' + edition);
+  cy.get(CheckMkSelectors.SetupForm.name).clear().type(`Checkmk ${edition}`);
   cy.get(CheckMkSelectors.SetupForm.url).type(Cypress.env('grafanaToCheckmkUrl'));
   cy.get(CheckMkSelectors.SetupForm.edition).type(edition + '{enter}');
   cy.contains(edition).should('exist');

tests/cypress/support/grafana_selectors.ts

@@ -11,7 +11,7 @@ const Selectors = {
   Login: {
     username_input: 'input[name="user"]',
     password_input: 'input[name="password"]',
-    login_button: 'button[aria-label="Login button"]',
+    login_button: 'button[data-testid="data-testid Login button"]',
   },
 
   AddDataSource: {