Happy headers

What's Changed

• Bump qs from 6.10.1 to 6.10.3 by @dependabot in #53
• Bump minimatch from 3.0.4 to 3.1.2 by @dependabot in #52
• Remove charset parameters from Content-Type and Accept headers by @henvo

Full Changelog: v0.9.0...v0.10.0