bump chia-pos2 to 0.1.6 along with updates for the new PoS

[arvidn]

The new version of chia-pos2 has these notable changes:

• There is no longer a QUALITY_PROOF_SCAN_FILTER
• There is no longer an extra step to resolve the partial proof from the quality proof. It's now just one step, you get the partial proof directly, and you can derive the quality from it

The changes are illustrated by test_pos2.py

[socket-security]

Review the following changes in direct dependencies. Learn more about Socket for GitHub.

Diff	Package	Supply Chain Security	Vulnerability	Quality	Maintenance	License
	cargo/​chia-pos2@​0.1.4 ⏵ 0.1.6	-26

View full report

[coveralls-official]

Pull Request Test Coverage Report for Build 20200837364

Details

• 27 of 27 (100.0%) changed or added relevant lines in 2 files are covered.
• 1 unchanged line in 1 file lost coverage.
• Overall coverage increased (+0.001%) to 80.58%

---

Files with Coverage Reduction	New Missed Lines	%
crates/chia-protocol/src/partial_proof.rs	1	88.89%

Totals
Change from base Build 20184503463:	0.001%
Covered Lines:	13975
Relevant Lines:	17343

---

💛 - Coveralls