Upgrade golangci-lint to v1.55.2

[peterstace]

Description

Some of the changes involve the revive linter being a bit stricter, resulting in the removal of "dot" imports. This is probably a good thing, since the tests are now more similar to how users will see things. There is also a new linter used called perfsprint which checks for bad uses of fmt.Sprintf.

Check List

Have you:

• Added unit tests? N/A

• Add cmprefimpl tests? (if appropriate?) N/A

• Updated release notes? (if appropriate?)

Related Issue

• https://github.com/peterstace/simplefeatures/issues/522

[peterstace]

Thanks for reviewing @albertteoh 😁