Bump packaging

To get around a compatibility issue with recent `twine` versions.
See pypa/twine#1216 (comment)

Author: davidparsson

requirements-dev.txt

@@ -8,7 +8,7 @@ importlib-metadata==7.0.0
 iniconfig==2.0.0
 mypy==1.7.1 ; implementation_name == "cpython"
 mypy-extensions==1.0.0
-packaging==23.2
+packaging==25.0
 pathspec==0.12.1
 platformdirs==4.1.0
 pluggy==1.3.0

requirements-docs.txt

@@ -9,7 +9,7 @@ idna==3.7
 imagesize==1.4.1
 jinja2==3.1.6
 markupsafe==2.1.3
-packaging==23.2
+packaging==25.0
 pygments==2.17.2
 requests==2.32.4
 snowballstemmer==2.2.0