v2.2.1

Added

• Support async pipe modules (see issue 112)
• Support minimum/maximum of parameters (see issue 24)

Changed

• Switch to Github actions for CI (see issue 102)
• Update graphql-ld dep

Fixed

• Config-file-parser shouldn't export async function (see issue 54)
• Enable logging of express again (see issue 43)
• Throws error when converting empty data to Turtle