Bump gwemopt from 0.2.2 to 0.3.1

Bumps [gwemopt](https://github.com/skyportal/gwemopt) from 0.2.2 to 0.3.1.
- [Commits](skyportal/gwemopt@0.2.2...0.3.1)

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

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

pyproject.toml

@@ -35,7 +35,7 @@ dependencies = [
     "wget",
     "astropy",
     "numpy",
-    "gwemopt==0.2.2",
+    "gwemopt==0.3.1",
     "pandas",
     "pydantic>=2.2.0",
     "planobs",