Add CompressionCodec and GZipLevel to Update

[mdenomy]

Change summary

The CompressionCodec and GZipLevel were not included in the struct to update the HTTPS endpoint.

• Have you followed the guidelines in our Contributing document?
• Have you checked to ensure there aren't other open Pull Requests for the same update/change?

Changes to Core Features:

• Have you written new tests for your core changes, as applicable?
• Have you successfully run tests with your changes locally?

User Impact

Users can update the compression attributes

Are there any considerations that need to be addressed for release?

No

[anthony-gomez-fastly]

LGTM