Enable golangci-lint

[andresuribe87]

This PR includes:

• Adding mage lint and deps targets.
  • lint will run golangci-lint with the commited configuration. I disabled a number of checks for revive, and updated the source code so that they all passed.
  • deps will install golangci-lint using homebrew.
• Added the golangci-lint action according to the instructions

[decentralgabe]

actually, I think we already have these types defined. cryptosuite.OKP and cryptosuite.Ed25519 should work

[decentralgabe]

few small ones - thanks for adding this!

[codecov-commenter]

Codecov Report

Merging #246 (12dc352) into main (39fefd7) will decrease coverage by 0.18%.
The diff coverage is 61.90%.

@@            Coverage Diff             @@
##             main     #246      +/-   ##
==========================================
- Coverage   59.56%   59.38%   -0.18%     
==========================================
  Files          38       38              
  Lines        4273     4276       +3     
==========================================
- Hits         2545     2539       -6     
- Misses       1329     1335       +6     
- Partials      399      402       +3     

Impacted Files	Coverage Δ
credential/signing/jwt.go	31.33% <ø> (+0.19%)	⬆️
credential/verification/verification.go	100.00% <ø> (ø)
did/util.go	50.00% <0.00%> (ø)
error/response.go	100.00% <ø> (ø)
did/web.go	68.42% <25.00%> (-5.59%)	⬇️
cryptosuite/jsonwebkey2020.go	44.67% <33.33%> (ø)
credential/manifest/validation.go	63.82% <56.52%> (+0.48%)	⬆️
credential/verification/verifiers.go	60.00% <60.00%> (ø)
did/pkh.go	73.10% <66.67%> (ø)
did/peer.go	65.37% <68.42%> (-0.65%)	⬇️
... and 9 more

[decentralgabe]

🚢