workspace: add Copy derive to fieldless enums and all-Copy structs #43899

Job	Run time
test-with-tracing-feature	3m 38s
test-with-transaction-serde-feature	3m 20s
benchmarking	9m 42s
test-with-cairo-native-feature	7m 43s
test-without-features	3m 43s
	28m 6s

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