ci: publish leaf crates with no internal dependencies

[erwanor]

Is your feature request related to a problem? Please describe.
It would be nice to publish some of our leaf crates (no internal workspace dependencies) to crates.io, in order to move us forward with our goal to publish our workspace crates and facilitate integration for downstream consumers of our stack.

There are few crates that are already good candidates since they are 1/ leaf crates 2/ used by astria:

• penumbra-storage
• tower-actor

TODOs:

• adapt our release.sh script from ibc-types to publish these crates
• create an action workflow that runs the script when a release tag is detected (like this)

[conorsch]

Prioritizing penumbra-zone/ibc-types#65 ahead of this one, since that work will be useful in tackling more crate publishing. Keeping in Next for now.

[hdevalence]

Two notes: we don't own tower-trace, we have a vendored fork. Let's avoid publishing any penumbra- crates for now.