fix: simplify comparison to satisfy linter

[mboersma]

Reason for Change:

Fixes a make test-style problem that somehow crept in with #627, at least for me. It also fails inside make dev, so I assume this will be a problem for CI in general:

==> Running static validations and linters <==
pkg/api/types_test.go:852:5: should omit comparison to bool constant, can be simplified to !update (megacheck.{unused,gosimple})
	if update != true {
	   ^
Makefile:126: recipe for target 'test-style' failed
make: *** [test-style] Error 1

Issue Fixed:

Requirements:

• uses conventional commit messages
• includes documentation
• adds unit tests
• tested upgrade from previous version

Notes:

[codecov]

Codecov Report

Merging #629 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #629   +/-   ##
=======================================
  Coverage   63.82%   63.82%           
=======================================
  Files          91       91           
  Lines       13947    13947           
=======================================
  Hits         8901     8901           
  Misses       4375     4375           
  Partials      671      671

[tariq1890]

/lgtm

[acs-bot]

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