If you have Desktop (ArcMap or ArcGIS Pro) and the Spatial Analyst extension you could use the Raster Calculator—Help | ArcGIS Desktop , and calculate something like this :
Con("YourRaster" == 1, 1, 0)
If you point the output to a TIF file, it will create an 8 bit unsigned integer:
You can't change the field type of the value field of a raster, since this is defined by the raster type.