Update to gfm v1.6.0

[jennijuju]

Checklist

• This is not a new feature or an enhancement to the Filecoin protocol. If it is, please open an FIP issue.
• This is not brainstorming ideas. If you have an idea you'd like to discuss, please open a new discussion on the lotus forum and select the category as Ideas.
• I have a specific, actionable, and well motivated feature request to propose.

Lotus component

Other

What is the motivation behind this feature request? Is your feature request related to a problem? Please describe.

Fancy improvements and new features in gfm v1.6.0 and we want them in lotus!

Describe the solution you'd like

Update the dep of gfm v1.6.0 once it’s ready

Describe alternatives you've considered

No response

Additional context

No response

[aarshkshah1992]

https://github.com/filecoin-project/go-fil-markets/releases/tag/v1.6.0.