Bump decancer from 3.3.3 to 4.0.0

Bumps [decancer](https://github.com/null8626/decancer) from 3.3.3 to 4.0.0.
- [Release notes](https://github.com/null8626/decancer/releases)
- [Commits](https://github.com/null8626/decancer/compare/v3.3.3...v4.0.0)

---
updated-dependencies:
- dependency-name: decancer
  dependency-version: 4.0.0
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>

crates/common/Cargo.toml

@@ -54,7 +54,7 @@ sha2 = "0.11"
 md5 = "0.8.1"
 whatlang = "0.18"
 idna = "1.1"
-decancer = "3.3.3"
+decancer = "4.0.0"
 unicode-security = "0.1.2"
 infer = "0.22"
 bincode = { version = "2.0.1", features = ["serde"] }

crates/spam-filter/Cargo.toml

@@ -19,7 +19,7 @@ tokio = { version = "1.53", features = ["net", "macros"] }
 psl = "2"
 hyper = { version = "1.11.1", features = ["server", "http1", "http2"] }
 idna = "1.1"
-decancer = "3.3.3"
+decancer = "4.0.0"
 unicode-security = "0.1.2"
 infer = "0.22"
 hashify = "0.2"