Bump psycopg2-binary from 2.9.3 to 2.9.4

Bumps [psycopg2-binary](https://github.com/psycopg/psycopg2) from 2.9.3 to 2.9.4.
- [Release notes](https://github.com/psycopg/psycopg2/releases)
- [Changelog](https://github.com/psycopg/psycopg2/blob/master/NEWS)
- [Commits](https://github.com/psycopg/psycopg2/commits)

---
updated-dependencies:
- dependency-name: psycopg2-binary
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

requirements.txt

@@ -5,7 +5,7 @@ djangorestframework==3.14.0
 eip712-structs==1.1.0
 hexbytes==0.2.3
 packaging
-psycopg2-binary==2.9.3
+psycopg2-binary==2.9.4
 py-evm==0.5.0a3
 pysha3>=1.0.0
 requests==2.28.1