Release v0.21.0

[thanethomson]

📖 CHANGELOG rendered

The audit check will continue to fail due to #925

• Referenced an issue explaining the need for the change
• Updated all relevant documentation in docs
• Updated all code comments where relevant
• Wrote tests
• Added entry in .changelog/

[codecov-commenter]

Codecov Report

Merging #935 (c00d0bc) into master (f46cf0f) will increase coverage by 0.0%.
The diff coverage is n/a.

@@          Coverage Diff           @@
##           master    #935   +/-   ##
======================================
  Coverage    70.4%   70.4%           
======================================
  Files         203     203           
  Lines       16333   16333           
======================================
+ Hits        11511   11513    +2     
+ Misses       4822    4820    -2     

Impacted Files	Coverage Δ
light-client/src/lib.rs	100.0% <ø> (ø)
proto/src/lib.rs	100.0% <ø> (ø)
tendermint/src/lib.rs	100.0% <ø> (ø)
tendermint/src/block/commit_sig.rs	77.2% <0.0%> (-2.3%)	⬇️
light-client/src/types.rs	30.9% <0.0%> (+0.8%)	⬆️
testgen/src/vote.rs	84.6% <0.0%> (+0.8%)	⬆️

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[romac]

Pre-approving already :)

[xla]

🚁 🍤 💽 💁

The change to Informal Systems as the author for some of the crates is sub-optimal I think.

[thanethomson]

The change to Informal Systems as the author for some of the crates is sub-optimal I think.

How so? 🙂 I'd imagine it'd just be easier to have a single point of contact for Informal Systems. All other authors' details are kept as-is.