Bump units from 74a5020 to 1149a0a (#357)

Bumps [units](https://github.com/IAMconsortium/units) from `74a5020` to `1149a0a`.
- [Release notes](https://github.com/IAMconsortium/units/releases)
- [Commits](IAMconsortium/units@74a5020...1149a0a)

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