chore(deps): update nom requirement from 7.1 to 8.0

Updates the requirements on [nom](https://github.com/rust-bakery/nom) to permit the latest version.
- [Changelog](https://github.com/rust-bakery/nom/blob/main/CHANGELOG.md)
- [Commits](rust-bakery/nom@7.1.0...8.0.0)

---
updated-dependencies:
- dependency-name: nom
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

Cargo.toml

@@ -21,7 +21,7 @@ enum-map = "2.4"
 flate2 = "1.0"
 log = "0.4"
 md-5 = "0.10"
-nom = "7.1"
+nom = "8.0"
 postgres = { version = "0.19", features = ["with-chrono-0_4"] }
 quick_cache = "0.6"
 regex = "1.7"