build(deps): bump nomenklatura from 4.6.2 to 4.6.4

Bumps [nomenklatura](https://github.com/opensanctions/nomenklatura) from 4.6.2 to 4.6.4.
- [Commits](opensanctions/nomenklatura@4.6.2...4.6.4)

---
updated-dependencies:
- dependency-name: nomenklatura
  dependency-version: 4.6.4
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

pyproject.toml

@@ -31,7 +31,7 @@ dependencies = [
     "cryptography == 46.0.4",
     "followthemoney == 4.5.2",
     "fingerprints == 1.3.1",
-    "nomenklatura == 4.6.2",
+    "nomenklatura == 4.6.4",
     "rigour == 1.7.0",
     "asyncstdlib == 3.13.1",
     "aiocron == 2.1",