Exclude snapshots from published packages (#1283) #2957

Job	Run time
test (examples)	8m 35s
typos	3s
test (utoipa)	1m 1s
test (utoipa-gen)	2m 39s
test (utoipa-swagger-ui-vendored)	18s
test (utoipa-swagger-ui)	2m 29s
test (utoipa-redoc)	1m 26s
test (utoipa-rapidoc)	1m 18s
test (utoipa-scalar)	1m 18s
test (utoipa-axum)	54s
test (utoipa-config)	30s
test (utoipa-actix-web)	1m 1s
	21m 32s

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