Release Arrow 30.0.1 (maintenance release for 30.0.0)

[alamb]

Is your feature request related to a problem or challenge? Please describe what you are trying to do.
We recently released arrow 30.0.0: #3336 and found two issues:

• The upgrade to multiversion Upgrade multiversion to 0.7.1 #3396 means now all crates that use arrow-rs require rebuild on every compilation (see Crate Always Rebuilds calebzulawski/target-features#1)
• nullif kernel no longer exported #3454

Describe the solution you'd like
A new release version 30.0.1 with just the fixes for:

• Remove multiversion dependency #3452
• Re-export nullif kernel #3451

Describe alternatives you've considered

• Possibly release 30.1.0 (need dependency)?
• Just wait until the release of 31.0.0 Release Arrow 31.0.0 (next release after 30.0.0) #3415

Additional context
Found while trying to update datafusion. This may block the upgrade and possibly delay the release apache/datafusion#4776 cc @andygrove

[tustvold]

Release thread - https://lists.apache.org/thread/p5dqfopymxw0or7hqh1tl5npcj4338qw

[iajoiner]

Shall this be closed since the release has already taken place?