Add xz (xz utils) stream compression

[ross-spencer]

Mime: application/x-xz

Source:

jsonid/src/jsonid/compressionlib.py

Lines 18 to 24 in a69876f

	# Allowed stream compressor formats for JSONL.
	COMPRESSED_BZIP2 = "application/x-bzip2"
	COMPRESSED_GZIP = "application/gzip"
	COMPRESSED: Final[list] = [
	COMPRESSED_BZIP2,
	COMPRESSED_GZIP,
	]

Samples (under asciicast): https://github.com/ffdev-info/jsonid-integration-files/tree/main/jsonl/asciicast