nodeinfo2.1 should be on v2 api

front/cypress/support/commands.ts

 Cypress.Commands.add('login', () => {
   cy.fixture('testuser.json').then(({ username, password }) => {
     // We need to request a page that sets the csrf cookie
-    cy.request('/api/v1/instance/nodeinfo/2.1/')
+    cy.request('/api/v2/instance/nodeinfo/2.1/')
 
     cy.getCookie('csrftoken').then(($cookie) => {
       cy.request({

front/src/views/ChooseInstance.vue

@@ -35,7 +35,7 @@ const checkAndSwitch = async (url: string) => {
 
   try {
     const instanceUrl = new URL(url.startsWith('https://') || url.startsWith('http://') ? url : `https://${url}`).origin
-    await axios.get(instanceUrl + '/api/v1/instance/nodeinfo/2.1/')
+    await axios.get(instanceUrl + '/api/v2/instance/nodeinfo/2.1/')
 
     store.commit('ui/addMessage', {
       content: t('views.ChooseInstance.message.newUrl', { url: instanceUrl }),