pyproject.toml: Use the backend as the anchor package, let DSS-Python float.

Author: PMeira

pyproject.toml

@@ -20,7 +20,7 @@ artifacts = ["altdss/_version.py"]
 name = "altdss"
 dynamic = ["version"]
 dependencies = [
-    "dss_python>=0.15.5,<0.16.0",
+    "dss_python",
     "dss_python_backend==0.14.4",
     "numpy>=1.21.0",
     "typing_extensions>=4.5,<5",
@@ -69,5 +69,5 @@ test = [
   "pytest",
 ]
 all = [
-  "dss_python[all]>=0.15.5,<0.16.0",
+  "dss_python[all]",
 ]