Description

Fixes: #8548

User-Facing Changes

❯ register target/debug/formats
Error:
  × Register plugin failed
   ╭─[entry #1:1:1]
 1 │ register target/debug/formats
   ·          ──────────┬─────────
   ·                    ╰── plugin name must starts with nu_plugin_
   ╰────

Tests + Formatting

Don't forget to add tests that cover your changes.

Make sure you've run and fixed any issues with these commands:

• cargo fmt --all -- --check to check standard code formatting (cargo fmt --all applies these changes)
• cargo clippy --workspace -- -D warnings -D clippy::unwrap_used -A clippy::needless_collect to check that you're using the standard code style
• cargo test --workspace to check that all tests pass

Note
from nushell you can also use the toolkit as follows

use toolkit.nu  # or use an `env_change` hook to activate it automatically
toolkit check pr

After Submitting

If your PR had any user-facing changes, update the documentation after the PR is merged, if necessary. This will help us keep the docs up to date.