Upper limit flask-caching (equinor#596)

Author: anders-kiaer

setup.py

@@ -84,7 +84,7 @@ def get_long_description() -> str:
         "dash-pivottable>=0.0.2",
         "dataclasses>=0.8; python_version<'3.7'",
         "flask>=2.0",
-        "flask-caching>=1.4",
+        "flask-caching>=1.4,<1.11",  # https://github.com/equinor/webviz-config/issues/595
         "flask-talisman>=0.6",
         "importlib-metadata>=1.7; python_version<'3.8'",
         "jinja2>=2.10",