tokio-shared-rt

It's used only as a dev dependency in 7 crates.

Depender (with downloads and own rev deps)			tokio-shared-rt version
1.4K	2	resend-rs	dev	^0.1.0
700		riven	dev	^0.1.0
550	1	evento-query	dev	^0.1.0
500		db-pool	dev	^0.1.0
130	1	desec_api	dev	^0.1.0
	2	evento-store	dev	^0.1.0
		evento	dev	^0.1.0