allow embago and leased works to be updated

[blancoj]

Fixes #3958
Allows embargoed and leased works to be updated. Before this change, the only way an embargoed or leased work could be updated was if the date range were changed. I have placed an explanatory comment on how to get around this in the code.

Guidance for testing, such as acceptance criteria or new user interface behaviors:

• Create an embargo work.
• Edit the title of the work and save it.
• Verify the title was changed.
• Edit the work again, and this time add a file to the work and save it.
• Verify that the new file was uploaded.
  AND
• Create a leased work.
• Edit the title of the work and save it.
• Verify the title was changed.
• Edit the work again, and this time add a file to the work and save it.
• Verify that the new file was uploaded.

@samvera/hyrax-code-reviewers

[no-reply]

Thanks! Nice fix!