Add integration tests

General MR

Summary

Adds cypress tests to validate basic wrapper functionality using podinfo

Relevant logs/screenshots

Linked Issue

big-bang/bigbang#2263 (closed)

Upgrade Notices

N/A

chart/tests/cypress/e2e/01-podinfo-ui-test.cy.js

+describe('Basic Podinfo Tests', function() {
+    it('Check Podinfo is accessible', function() {
+        cy.visit(Cypress.env('podinfo_url'))
+    })
+  })