CI/Add go1.17 test

[carpawell]

Add Go 1.17 test in CI, sync receiver names, update go version to 1.16.

[codecov]

Codecov Report

Merging #335 (66a62c6) into master (8c9e150) will not change coverage.
The diff coverage is 100.00%.

❗ Current head 66a62c6 differs from pull request most recent head d678d4d. Consider uploading reports for the commit d678d4d to get more accurate results

@@           Coverage Diff           @@
##           master     #335   +/-   ##
=======================================
  Coverage   62.89%   62.89%           
=======================================
  Files         119      119           
  Lines       13826    13826           
=======================================
  Hits         8696     8696           
  Misses       4138     4138           
  Partials      992      992           

Impacted Files	Coverage Δ
pkg/object/tombstone.go	91.22% <100.00%> (ø)

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