Revert "delete unused schema in scio-avro (#2870)" (#2872)
Revert "delete unused schema in scio-avro (#2870)" (#2872)

This reverts commit 3d226b15b88290ea3d2d1f312352b9eedb897e00.
spotify/scio,spotify/scio,regadas/scio,spotify/scio,regadas/scio,regadas/scio,regadas/scio,regadas/scio,spotify/scio