Update dagster-postgres requirement

Updates the requirements on [dagster-postgres](https://github.com/dagster-io/dagster) to permit the latest version.
- [Release notes](https://github.com/dagster-io/dagster/releases)
- [Changelog](https://github.com/dagster-io/dagster/blob/master/CHANGES.md)
- [Commits](https://github.com/dagster-io/dagster/commits)

---
updated-dependencies:
- dependency-name: dagster-postgres
  dependency-type: direct:production
...

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

pyproject.toml

@@ -21,7 +21,7 @@ dependencies = [
     "coloredlogs>=14.0,<15.1",  # Dagster requires 14.0
     "dagster-webserver>=1.4,<1.6",
     "dagster>=1.4,<1.6",
-    "dagster-postgres>=0.21.5,<0.21.7",
+    "dagster-postgres>=0.21.5,<0.21.8",
     "dask>=2022.5,<2023.10.2",
     "datapackage>=1.11,<1.16",  # Transition datastore to use frictionless.
     "email-validator>=1.0.3",  # pydantic[email]