Upgrade Enzyme for unit and integraiton tests (but not e2e tests)

frontend/src/metabase/lib/api.js

frontend/test/enzyme-setup.js

frontend/test/metabase/components/Button.unit.spec.js

frontend/test/metabase/containers/Overworld.unit.spec.js

frontend/test/metabase/dashboard/DashCard.unit.spec.js

jest.e2e.conf.json

jest.integ.conf.json

jest.unit.conf.json

package.json

yarn.lock