refactor!: switch module format to ESM #234
Merged
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With the switch to Node>=20, this PR switches the module format to ESM. Given the current state of the JS ecosystem, going ESM-native gives us wider compatibility with dependencies that have gone ESM-only. With Node's new ability to require ESM modules, hopefully any disruption should be minimal here.
This required swapping out
esbuildforrolldownto bundle the action properly.BREAKING CHANGE: library is now ESM only