miden-vm: match the crate with the package name. Fix #1270

[hackaugusto]

Describe your changes

As per the PR title. This makes the library crate name match the package name.

Checklist before requesting a review

• Repo forked and branch created from next according to naming convention.
• Commit messages and codestyle follow conventions.
• Relevant issues are linked in the PR description.
• Tests added for new functionality.
• Documentation/comments updated according to changes.

[bobbinth]

oh - i guess we also need to update the executable code to import miden_vm.

[hackaugusto]

ah, oops, I only built the library. Updated the references to use miden_vm instead

[bobbinth]

Could you also update the changelog as I mentioned in https://github.com/0xPolygonMiden/miden-vm/pull/1271#pullrequestreview-1918083129.

[hackaugusto]

sorry, missed that