fix(deps): update dependency python-stdnum to v2

pyproject.toml

@@ -8,7 +8,7 @@ authors = [
 license= { file = "LICENSE.txt" }
 dependencies = [
     "pandas[feather,performance]~=2.2.3",
-    "python-stdnum~=1.20",
+    "python-stdnum~=2.0",
     "requests~=2.32.3",
     "requests-cache~=1.2.1",
     "colorama~=0.4",
@@ -49,7 +49,7 @@ dev = [
     "pytest~=8.3",
     "isort~=6.0",
     "csvkit~=2.0",
-    "ipython~=9.2",
+    "ipython~=8.31",
 ]
 
 # So hatch doesn't try to build other top-level directories like "data"