v4.0.0

What's Changed

• errors: improve error message for unsupported Go versions by @RomainMuller in #118
• feat: v4.0.0, [email protected] by @RomainMuller in #119
• fix: libddwaf does not accept nullptr-valued blank strings by @RomainMuller in #120
• refactor(timer): replace raw strings by timer.Key for futur use by @eliottness in #121
• feat: remove timeout metrics and rework timer usages by @eliottness in #122
• fix: duplicate symbol github.com/ebitengine/purego.dlopen by @eliottness in #124

Full Changelog: v3.5.4...v4.0.0