pin kombu to >= 5.3 for importlib-metadata fix (poetry had already picked up 5.3.x)

packages/app/setup.cfg

@@ -50,8 +50,7 @@ install_requires =
     cloudauthz==0.6.0
     dparse
     gxformat2
-    importlib-metadata<5  # Work around https://github.com/celery/kombu/issues/1600
-    kombu
+    kombu>=5.3
     lagom
     lxml!=4.2.2
     Mako

pyproject.toml

@@ -68,10 +68,9 @@ gunicorn = "*"
 gxformat2 = "*"
 h5grove = ">=1.2.1"
 h5py = "*"
-importlib-metadata = "<5"  # Work around https://github.com/celery/kombu/issues/1600
 importlib-resources = { version = "*", python = "<3.9" }  # for importlib.{abc.Traversable,resources.{files, Package}}
 isa-rwval = ">=0.10.10"
-kombu = "*"
+kombu = ">=5.3"  # for importlib-metadata fix
 lagom = "*"
 Mako = "*"
 Markdown = "*"