feat(transform_conformance): drop more unsupported plugins #8491

Job	Run time
Cargo Deny	4s
Check and Build (windows-latest)	1m 27s
Format	14s
Check and Build (ubuntu-latest)	33s
Spell Check	5s
Check and Build (macos-14)	38s
Check Unused Dependencies	20s
Check Wasm	59s
Conformance	2m 17s
Doc	35s
Clippy	47s
Test (windows-latest)	2m 16s
Test (ubuntu-latest)	53s
Test (macos-14)	54s
	12m 2s

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