v2026.4.10

A small patch release that fixes a single bug affecting tool postinstall hooks.

## Fixed

- **Spurious warnings from postinstall hooks running tasks** -- When a tool-level `postinstall` hook ran a nested `mise run`, the child process inherited the `MISE_TOOL_VERSION` environment variable set during hooks. `ToolsetBuilder` was incorrectly parsing this as a request to install a tool named `tool` at the given version via the `MISE_<TOOL>_VERSION` convention, producing spurious registry warnings before the task executed. mise now ignores `MISE_TOOL_VERSION` in the same way it already ignored `MISE_INSTALL_VERSION`. [#9050](https://github.com/jdx/mise/pull/9050) by @risu729

**Full Changelog**: https://github.com/jdx/mise/compare/v2026.4.9...v2026.4.10