Update golangci-lint

[alessio]

Update golangci-lint to latest version.

Remove ci-lint, no longer used.

Remove golangci-lint from tools target to prevent CI builds
from downloading automatically (and unnecessarily).
Developers can still run make golangci-lint to download
it locally for development and testing purposes.

• Linked to github-issue with discussion and accepted design OR link to spec that describes this work.
• Wrote tests
• Updated relevant documentation (docs/)
• Added a relevant changelog entry: clog add [section] [stanza] [message]
• rereviewed Files changed in the github PR explorer

---

For Admin Use:

• Added appropriate labels to PR (ex. wip, ready-for-review, docs)
• Reviewers Assigned
• Squashed all commits, uses message "Merge pull request #XYZ: [title]" (coding standards)

[codecov]

Codecov Report

Merging #4636 into master will increase coverage by 0.01%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master    #4636      +/-   ##
==========================================
+ Coverage   54.11%   54.12%   +0.01%     
==========================================
  Files         260      260              
  Lines       16371    16371              
==========================================
+ Hits         8859     8861       +2     
+ Misses       6866     6864       -2     
  Partials      646      646

[alexanderbez]

ACK. However, are we sure we want to remove this from the tools target?

[tac0turtle]

LGTM