Update Code of Conduct

[jonasrosland]

What this PR does / why we need it:
This implements an updated Code of Conduct.

Which issue(s) this PR fixes

• Fixes Update our Code of Conduct to Contributor Covenant v2.0 #1076

Signed-off-by: jonasrosland jrosland@vmware.com

[codecov-io]

Codecov Report

Merging #1077 into master will decrease coverage by 0.03%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master    #1077      +/-   ##
==========================================
- Coverage   50.86%   50.83%   -0.04%     
==========================================
  Files          79       79              
  Lines        5772     5772              
==========================================
- Hits         2936     2934       -2     
- Misses       2662     2664       +2     
  Partials      174      174

Impacted Files	Coverage Δ
cmd/sonobuoy/app/status.go	57.54% <0%> (-1.89%)	⬇️

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