chore(release): 2.7.0

[suzubara]

2.7.0 (2022-01-12)

Features

• Add focus method to ComboBox ref (#1876) (c380a94)

Bug Fixes

• Fix Tooltip positioning (#1878) (f15fea0)

Documentation & Examples

• Add help section to releasing README (#1867) (73e9094)

[suzubara]

Diff: 2.6.0...main

[brandonlenz]

I'm a little concerned about these runs on main (saw them when looking at the diff):

[haworku]

More from the error pulled out above
yarn run v1.22.17

$ /home/runner/work/react-uswds/react-uswds/node_modules/.bin/danger ci --failOnErrors
Unable to evaluate the Dangerfile
 TypeError: Cannot read property 'concat' of 
    at Object.<anonymous> (dangerfile.ts:25:42)
....

Danger: ⅹ Failing the build, there is 1 fail.
## Failures
Danger failed to run `dangerfile.ts`.
## Markdowns
## Error TypeError

Cannot read property 'concat' of undefined
TypeError: Cannot read property 'concat' of undefined