Is your feature request related to a problem or challenge?

#6404 by @e1ijah1 added support for type coercion within SchemaAdapter, we should hook up ParquetExec to make use of this to allow for mixed schema within a single ParquetExec

Describe the solution you'd like

I would like to be able to read a set of parquet files with different schema and have them coerced to the same schema

Describe alternatives you've considered

No response

Additional context

No response