Only require compatible batch schema in ArrowWriter

[tustvold]

Which issue does this PR close?

Relates to #4023

Rationale for this change

We should only require that the batches have a compatible schema, not that they necessarily have the exact same schema.

What changes are included in this PR?

Are there any user-facing changes?

[alamb]

I verified that these tests fail without the code change:

---- arrow::arrow_writer::tests::test_arrow_writer_metadata stdout ----
thread 'arrow::arrow_writer::tests::test_arrow_writer_metadata' panicked at 'called `Result::unwrap()` on an `Err` value: ArrowError("Record batch schema does not match writer schema")', parquet/src/arrow/arrow_writer/mod.rs:2380:30
stack backtrace:
   0: rust_begin_unwind
             at /rustc/2c8cc343237b8f7d5a3c3703e3a87f2eb2c54a74/library/std/src/panicking.rs:575:5
   1: core::panicking::panic_fmt
             at /rustc/2c8cc343237b8f7d5a3c3703e3a87f2eb2c54a74/library/core/src/panicking.rs:64:14
   2: core::result::unwrap_failed
             at /rustc/2c8cc343237b8f7d5a3c3703e3a87f2eb2c54a74/library/core/src/result.rs:1790:5
   3: core::result::Result<T,E>::unwrap
             at /rustc/2c8cc343237b8f7d5a3c3703e3a87f2eb2c54a74/library/core/src/result.rs:1112:23
   4: parquet::arrow::arrow_writer::tests::test_arrow_writer_metadata
             at ./src/arrow/arrow_writer/mod.rs:2380:9
   5: parquet::arrow::arrow_writer::tests::test_arrow_writer_metadata::{{closure}}
             at ./src/arrow/arrow_writer/mod.rs:2363:37
   6: core::ops::function::FnOnce::call_once
             at /rustc/2c8cc343237b8f7d5a3c3703e3a87f2eb2c54a74/library/core/src/ops/function.rs:250:5
   7: core::ops::function::FnOnce::call_once
             at /rustc/2c8cc343237b8f7d5a3c3703e3a87f2eb2c54a74/library/core/src/ops/function.rs:250:5
note: Some details are omitted, run with `RUST_BACKTRACE=full` for a verbose backtrace.

---- arrow::arrow_writer::tests::test_arrow_writer_nullable stdout ----
thread 'arrow::arrow_writer::tests::test_arrow_writer_nullable' panicked at 'called `Result::unwrap()` on an `Err` value: ArrowError("Record batch schema does not match writer schema")', parquet/src/arrow/arrow_writer/mod.rs:2399:30
stack backtrace:
   0: rust_begin_unwind
             at /rustc/2c8cc343237b8f7d5a3c3703e3a87f2eb2c54a74/library/std/src/panicking.rs:575:5
   1: core::panicking::panic_fmt
             at /rustc/2c8cc343237b8f7d5a3c3703e3a87f2eb2c54a74/library/core/src/panicking.rs:64:14
   2: core::result::unwrap_failed
             at /rustc/2c8cc343237b8f7d5a3c3703e3a87f2eb2c54a74/library/core/src/result.rs:1790:5
   3: core::result::Result<T,E>::unwrap
             at /rustc/2c8cc343237b8f7d5a3c3703e3a87f2eb2c54a74/library/core/src/result.rs:1112:23
   4: parquet::arrow::arrow_writer::tests::test_arrow_writer_nullable
             at ./src/arrow/arrow_writer/mod.rs:2399:9
   5: parquet::arrow::arrow_writer::tests::test_arrow_writer_nullable::{{closure}}
             at ./src/arrow/arrow_writer/mod.rs:2385:37
   6: core::ops::function::FnOnce::call_once
             at /rustc/2c8cc343237b8f7d5a3c3703e3a87f2eb2c54a74/library/core/src/ops/function.rs:250:5
   7: core::ops::function::FnOnce::call_once
             at /rustc/2c8cc343237b8f7d5a3c3703e3a87f2eb2c54a74/library/core/src/ops/function.rs:250:5
note: Some details are omitted, run with `RUST_BACKTRACE=full` for a verbose backtrace.