Release 5.0.0

• Add ESM support and change to jiti #106
• feat(jiti): Move away from ts-node, use jiti 56f9e65
• feat(esm): Generate esm sources and support import c879324
• feat(esm): Require cosmiconfig 8 and node 16 ca6e2da
• feat(esm): Update testing to use async only 50aad7e
• feat(esm): Correctly emit require vs import 16f292b
• chore(repo): update ignore 5ab8f8f
• feat(esm): Update smoke tests f02d4dd
• cicd(build): Drop node 14 support 29c806b
• feat(esm): No longer force to commonjs 68403dd
• chore(scripts): Tidy up build commands 04f0b04
• chore(scripts): tidy up 521386d
• refactor(build): Move build to scripts ce5ce9e
• chore(cicd): Only run on pr and push to main f15f952