ci: Bump Ubuntu and Python versions

.github/workflows/draft.yml

@@ -12,7 +12,7 @@ jobs:
     - name: Set up Python
       uses: actions/setup-python@0a5c61591373683505ea898e09a3ea4f39ef2b9c
       with:
-        python-version: '3.10'
+        python-version: '3.14'
         cache: pip
 
     - name: Clone

.github/workflows/pr.yml

@@ -7,7 +7,7 @@ on:
 jobs:
   main:
     name: Sanity checks before a PR merge
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@3df4ab11eba7bda6032a0b82a6bb43b11571feac
         with:
@@ -16,7 +16,7 @@ jobs:
       - name: Set up Python
         uses: actions/setup-python@0a5c61591373683505ea898e09a3ea4f39ef2b9c
         with:
-          python-version: '3.10'
+          python-version: '3.14'
           cache: pip
 
       - name: Ensure changes build

.github/workflows/release.yml

@@ -32,7 +32,7 @@ jobs:
       if: steps.getver.outputs.spec_version != steps.prevver.outputs.prev_version
       uses: actions/setup-python@0a5c61591373683505ea898e09a3ea4f39ef2b9c
       with:
-        python-version: '3.10'
+        python-version: '3.14'
         cache: 'pip'
 
     - name: Make release