rpc: add support for `wiring.Component` #3575

Job	Run time
check-links	44s
document	45s
smoke (amaranth-lang/amaranth-boards)	37s
smoke (amaranth-lang/amaranth-stdio)	36s
smoke (amaranth-lang/amaranth-soc)	41s
test (3.8)	2m 27s
test (3.9)	2m 25s
test (3.10)	2m 20s
test (3.11)	2m 52s
test (3.12)	3m 52s
test (pypy-3.8)	5m 10s
test (pypy-3.9)	5m 10s
test (pypy-3.10)	5m 2s
test (3.13-dev)	3m 22s
publish-docs	9s
publish-docs-dev	0s
required	1s
publish-schemas	7s
publish-package	39s
publish-release	0s
	36m 59s

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