Update csp-gateway requirement from <2.6,>=2.5 to >=2.5,<2.7

Updates the requirements on [csp-gateway](https://github.com/Point72/csp-gateway) to permit the latest version.
- [Release notes](https://github.com/Point72/csp-gateway/releases)
- [Commits](Point72/csp-gateway@v2.5.0...v2.6.0)

---
updated-dependencies:
- dependency-name: csp-gateway
  dependency-version: 2.6.0
  dependency-type: direct:production
...

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

Author: dependabot[bot]

pyproject.toml

@@ -42,7 +42,7 @@ dependencies = [
     "chatom",
     "croniter",
     "csp>=0.9,<1",
-    "csp-gateway>=2.5,<2.6",
+    "csp-gateway>=2.5,<2.7",
     "dateparser",
     "hydra-core",
     "pandas",