requirements: Upgrade tox to 4.26.0

This resolves a conflict between older versions of tox and
Python 3.14b1.

diff --git a/requirements.txt b/requirements.txt
index ed280c0646010cab89ee5cedf6f32e9ca0526576..b32a5562007f209e367ecbdad7f893d91a95da02 100644 (file)
--- a/requirements.txt
+++ b/requirements.txt
@@ -12,7 +12,7 @@ black==24.4.2
     # via -r requirements.in
 build==1.2.1
     # via pip-tools
-cachetools==5.3.3
+cachetools==5.5.2
     # via tox
 certifi==2024.7.4
     # via requests
@@ -32,7 +32,7 @@ docutils==0.20.1
     # via
     #   sphinx
     #   sphinx-rtd-theme
-filelock==3.14.0
+filelock==3.18.0
     # via
     #   tox
     #   virtualenv
@@ -54,7 +54,7 @@ mypy-extensions==1.0.0
     # via
     #   black
     #   mypy
-packaging==24.1
+packaging==25.0
     # via
     #   black
     #   build
@@ -65,7 +65,7 @@ pathspec==0.12.1
     # via black
 pip-tools==7.4.1
     # via -r requirements.in
-platformdirs==4.2.2
+platformdirs==4.3.8
     # via
     #   black
     #   tox
@@ -78,7 +78,7 @@ pyflakes==3.2.0
     # via flake8
 pygments==2.18.0
     # via sphinx
-pyproject-api==1.6.1
+pyproject-api==1.9.1
     # via tox
 pyproject-hooks==1.1.0
     # via
@@ -109,7 +109,7 @@ sphinxcontrib-qthelp==1.0.7
     # via sphinx
 sphinxcontrib-serializinghtml==1.1.10
     # via sphinx
-tox==4.15.1
+tox==4.26.0
     # via -r requirements.in
 types-pycurl==7.45.3.20240421
     # via -r requirements.in
@@ -117,7 +117,7 @@ typing-extensions==4.12.2
     # via mypy
 urllib3==2.2.2
     # via requests
-virtualenv==20.26.6
+virtualenv==20.31.2
     # via tox
 wheel==0.43.0
     # via pip-tools