Update golangci-lint and config

[saschagrunert]

What type of PR is this?

/kind cleanup

What this PR does / why we need it:

Update the linter, its configuration and fix the lints.

Which issue(s) this PR fixes:

None

Special notes for your reviewer:

None

Does this PR introduce a user-facing change?

None

[coveralls]

Pull Request Test Coverage Report for Build 13050068087

Details

• 36 of 60 (60.0%) changed or added relevant lines in 4 files are covered.
• 16 unchanged lines in 2 files lost coverage.
• Overall coverage decreased (-0.1%) to 61.447%

---

Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
tools/ocicnitool/ocicnitool.go	0	4	0.0%
pkg/ocicni/ocicni.go	34	54	62.96%

Files with Coverage Reduction	New Missed Lines	%
tools/ocicnitool/ocicnitool.go	2	0.0%
pkg/ocicni/ocicni.go	14	71.26%

Totals
Change from base Build 12903949434:	-0.1%
Covered Lines:	569
Relevant Lines:	926

---

💛 - Coveralls

[saschagrunert]

@cri-o/cri-o-maintainers PTAL

[sohankunkerkar]

/lgtm

[openshift-ci]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: saschagrunert, sohankunkerkar

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