Bump pymarc from 5.2.3 to 5.3.1

Bumps [pymarc](https://gitlab.com/pymarc/pymarc) from 5.2.3 to 5.3.1.
- [Release notes](https://gitlab.com/pymarc/pymarc/tags)
- [Commits](https://gitlab.com/pymarc/pymarc/compare/v5.2.3...v5.3.1)

---
updated-dependencies:
- dependency-name: pymarc
  dependency-version: 5.3.1
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

poetry.lock

@@ -25,7 +25,7 @@ readme = "README.md"
 [tool.poetry.dependencies]
 python = "^3.11"
 fastapi = "==0.115.14"
-pymarc = "==5.2.3"
+pymarc = "==5.3.1"
 uvicorn = {version = "==0.34.3", extras = ["standard"]}
 xmltodict = "==0.14.2"
 zeep = {version = "==4.3.1", extras = ["async"]}