fix(deps): update rust crate pyo3-polars to 0.18.0 - autoclosed

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
pyo3-polars	dependencies	minor	0.17.0 -> 0.18.0

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[renovate]

⚠️ Artifact update problem

Renovate failed to update an artifact related to this branch. You probably do not want to merge this PR as-is.

♻ Renovate will retry this branch, including artifacts, only when one of the following happens:

• any of the package files in this branch needs updating, or
• the branch becomes conflicted, or
• you click the rebase/retry checkbox if found above, or
• you rename this PR's title to start with "rebase!" to trigger it manually

The artifact failure details are included below:

File name: rust/Cargo.lock

Command failed: cargo update --config net.git-fetch-with-cli=true --manifest-path rust/Cargo.toml --workspace
    Updating crates.io index
error: failed to select a version for `pyo3-ffi`.
    ... required by package `pyo3 v0.21.0`
    ... which satisfies dependency `pyo3 = "^0.21"` of package `pyo3-polars v0.18.0`
    ... which satisfies dependency `pyo3-polars = "^0.18.0"` of package `rustext v0.2.0 (/tmp/renovate/repos/github/artis-mcrt/artistools/rust)`
versions that meet the requirements `=0.21.0` are: 0.21.0

the package `pyo3-ffi` links to the native library `python`, but it conflicts with a previous package which links to `python` as well:
package `pyo3-ffi v0.22.4`
    ... which satisfies dependency `pyo3-ffi = "=0.22.4"` of package `pyo3 v0.22.4`
    ... which satisfies dependency `pyo3 = "^0.22"` of package `rustext v0.2.0 (/tmp/renovate/repos/github/artis-mcrt/artistools/rust)`
Only one package in the dependency graph may specify the same links value. This helps ensure that only one copy of a native library is linked in the final binary. Try to adjust your dependencies so that only one package uses the `links = "python"` value. For more information, see https://doc.rust-lang.org/cargo/reference/resolver.html#links.

failed to select a version for `pyo3-ffi` which could resolve this conflict