Update & pin CI Python versions to 3.14

Author: ulgens

.github/workflows/cd.yml

@@ -30,7 +30,7 @@ jobs:
 
       - uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405 # v6.2.0
         with:
-          python-version: 3.13
+          python-version: 3.14
 
       - name: Build source distribution
         run: pipx run build --sdist --outdir dist/

.github/workflows/ci.yml

@@ -212,7 +212,7 @@ jobs:
 
       - uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405 # v6.2.0
         with:
-          python-version: 3.12
+          python-version: 3.14
 
       - name: Build source distribution (SDist) and binary distribution (wheel)
         run: |

.github/workflows/docs.yml

@@ -37,7 +37,7 @@ jobs:
 
       - uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405 # v6.2.0
         with:
-          python-version: "3.x"
+          python-version: 3.14
 
       - name: Restore Hugo builder cache
         uses: actions/cache@668228422ae6a00e4ad889ee87cd7109ec5666a7 # v5.0.4