Bump pymisp from 2.5.2 to 2.5.3 in /src/publishers (#448)

Bumps [pymisp](https://github.com/MISP/PyMISP) from 2.5.2 to 2.5.3.
- [Release notes](https://github.com/MISP/PyMISP/releases)
- [Changelog](https://github.com/MISP/PyMISP/blob/main/CHANGELOG.txt)
- [Commits](MISP/PyMISP@v2.5.2...v2.5.3)

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

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

src/publishers/requirements.txt

@@ -11,4 +11,4 @@ python-dotenv==1.0.1
 requests==2.32.3
 tweepy==4.14.0
 urllib3==2.2.3
-pymisp==2.5.2
+pymisp==2.5.3