Remove cap so app can run on ubuntu 24.04 with Python 3.12

setup.py

@@ -55,7 +55,7 @@ def read(fname):
         # minimum requirements for `omero web start`
         "concurrent-log-handler>=0.9.20",
         "Django>=4.2.3,<4.3",
-        "django-pipeline==2.1.0",
+        "django-pipeline",
         "django-cors-headers==3.7.0",
         "whitenoise>=5.3.0",
         "gunicorn>=19.3",