Update Rust crate actix-web-prom to 0.9.0

[renovate[bot]]

This PR contains the following updates:

Package	Type	Update	Change
actix-web-prom	dependencies	minor	0.8.0 -> 0.9.0

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Release Notes

nlopes/actix-web-prom (actix-web-prom)

### [`v0.9.0`](https://redirect.github.com/nlopes/actix-web-prom/blob/HEAD/CHANGELOG.md#090---2024-09-27) [Compare Source](https://redirect.github.com/nlopes/actix-web-prom/compare/v0.8.0...v0.9.0) ##### Added - feat: add support for masking unmatched paths by [@​ranger-ross](https://redirect.github.com/ranger-ross) in [https://github.com/nlopes/actix-web-prom/pull/84](https://redirect.github.com/nlopes/actix-web-prom/pull/84) [0.9.0]: https://redirect.github.com/nlopes/actix-web-prom/releases/tag/v0.9.0

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