chore(package): update rollup to version 1.21.4
chore(package): update rollup to version 1.21.4

Closes #6785
kartta-labs/iD,morray/iD,kartta-labs/iD,morray/iD,openstreetmap/iD,openstreetmap/iD,openstreetmap/iD,kartta-labs/iD