v3.2.0

What's Changed

• Update gty-migrate-from-testify by @dnephin in #228
• ci: add go1.18 by @dnephin in #227
• assert: improve godoc and failure messages by @dnephin in #229
• remove pkg/errors dependency by @dnephin in #230
• Ci update linters by @dnephin in #231
• assert: document that filename and line number are included by @dnephin in #233
• Small godoc improvement by @dnephin in #234

Full Changelog: v3.1.0...v3.2.0