rpc: add support for `wiring.Component` #3574

Job	Run time
check-links	49s
smoke (amaranth-lang/amaranth-boards)	34s
test (3.8)	2m 30s
document	52s
test (3.9)	2m 21s
smoke (amaranth-lang/amaranth-stdio)	38s
test (3.10)	2m 19s
smoke (amaranth-lang/amaranth-soc)	42s
test (3.11)	3m 0s
test (3.12)	3m 54s
test (pypy-3.8)	5m 40s
test (pypy-3.9)	5m 5s
test (pypy-3.10)	5m 7s
test (3.13-dev)	3m 28s
publish-docs	8s
publish-docs-dev	0s
required	1s
publish-package	44s
publish-schemas	5s
publish-release	0s
	37m 57s

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