Fix bug in comparison rule

[nunnatsa]

Description

When comparing len() result with a number, the linter used to wrongly fix Expect(len(x) == 5).To(BeTrue()) to Expect(len(x)).To(Equal(5)), which is also a wrong pattern.

This PR fixes this bug and fix the wrong patter to Expect(x).To(HaveLen(5))

Note: this is only for equal or not-equal comparison.

Type of change

• [x] Bug fix (non-breaking change which fixes an issue)

How Has This Been Tested?

• [x] Added test case and related test data
• [x] Update the functional test

Checklist:

• [x] I have performed a self-review of my own code
• [X] I have made corresponding changes to the documentation
• [x] My changes generate no new warnings
• [x] I have added tests that prove my fix is effective or that my feature works
• [x] New and existing unit tests pass locally with my changes
• [x] Any dependent changes have been merged and published in downstream modules
• [x] I ran golangci-lint

[coveralls]

Pull Request Test Coverage Report for Build 4468430270

• 33 of 43 (76.74%) changed or added relevant lines in 1 file are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage increased (+0.2%) to 83.194%

---

Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
ginkgo_linter.go	33	43	76.74%
<!--	Total:	33	43	76.74%	-->

Totals
Change from base Build 4468363662:	0.2%
Covered Lines:	698
Relevant Lines:	839

---

💛 - Coveralls