Update node-mocks-http

[atesgoral]

Description

Updates node-mocks-http to pick up a fix to response.getHeaders() (it should be a shallow copy).

eugef/node-mocks-http#217

[BPScott]

On the surface a version range bump from ^1.5.8 to ^1.11.0 doesn't sound like a major release. It's not bumping up a major version, and many consumers could already be using node-mocks-http v1.11.0 already, as that version satisfies both the old and new dependency ranges.

On slack you made the argument that the knock-on effects warrant a major bump - consumers could be relying on the broken behaviour present in v1.5.8 and thus produce tests would break in this update, and the update to ^v1.11.0 shall force consumers to address these mistakes - and version bumps that don't apply cleanly should be major version bumps.

I'm happy with that rationale that makes this be a major bump.

[atesgoral]

Pushed a dummy commit to unstick the CLA check