ci/tests(chore[python]): add Python 3.14 to CI workflows

why: Ensure CI and packaging cover the latest CPython release.

what:

- replace Python 3.13 with 3.14 in build, release, and docs GitHub workflows

- add Python 3.14 trove classifier for packaging metadata

Author: tony

.github/workflows/docs.yml

@@ -10,7 +10,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: ['3.13']
+        python-version: ['3.14']
     steps:
       - uses: actions/checkout@v4
 

.github/workflows/tests.yml

@@ -9,7 +9,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: ['3.9', '3.13']
+        python-version: ['3.9', '3.14']
     steps:
       - uses: actions/checkout@v4
 
@@ -56,7 +56,7 @@ jobs:
 
     strategy:
       matrix:
-        python-version: ['3.13']
+        python-version: ['3.14']
 
     steps:
       - uses: actions/checkout@v4

pyproject.toml

@@ -21,6 +21,7 @@ classifiers = [
   "Programming Language :: Python :: 3.11",
   "Programming Language :: Python :: 3.12",
   "Programming Language :: Python :: 3.13",
+  "Programming Language :: Python :: 3.14",
   "Topic :: Utilities",
   "Topic :: System :: Shells",
 ]