Nested decoders do not propagate some types of required parameters into dictionary sub-decoders

Found from a codex review of https://github.com/apache/arrow-nanoarrow/pull/935:

- `ArrowIpcSetDecompressor()` won't propagate into dictionary decoders. We might need to add the ability for decompressors to clone themselves for this to work (or allow a reference to the parent or parent decompressor)
- Dictionary sub-decoders don't inherit the metadata version read by the parent decoder. All one tests files that have ever been written with a dictionary encoded union pre 1.0 will be read incorrectly (but it's a good point worth handling).

Start by tracing ArrowIpcSetDecompressor() into dictionary sub-decoders and locating where the parent decoder reads metadata version information. Determine how dictionary decoders should receive decompressor and metadata-version state, then verify that decompressed data and pre-1.0 dictionary-encoded union files are read correctly.

Written by the indexing model from the issue text.