Bump moto[dynamodb] from 5.0.18 to 5.0.20

Bumps [moto[dynamodb]](https://github.com/getmoto/moto) from 5.0.18 to 5.0.20.
- [Release notes](https://github.com/getmoto/moto/releases)
- [Changelog](https://github.com/getmoto/moto/blob/master/CHANGELOG.md)
- [Commits](getmoto/moto@5.0.18...5.0.20)

---
updated-dependencies:
- dependency-name: moto[dynamodb]
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

requirements-all.txt

@@ -7,7 +7,7 @@
 -r requirements-apps-update-db.txt
 boto3==1.35.49
 jinja2==3.1.4
-moto[dynamodb]==5.0.18
+moto[dynamodb]==5.0.20
 pytest==8.3.3
 PyYAML==6.0.2
 responses==0.25.3