GIT: change workflows to retry Python 3.14.

Author: phmbressan

.github/workflows/test-pytest-slow.yaml

@@ -21,7 +21,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: [3.10, 3.13]
+        python-version: [3.10, 3.14]
     env:
       PYTHON: ${{ matrix.python-version }}
       MPLBACKEND: Agg

.github/workflows/test_pytest.yaml

@@ -19,7 +19,7 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest, macos-latest, windows-latest]
-        python-version: ["3.10", "3.13"]
+        python-version: ["3.10", "3.14"]
     env:
       OS: ${{ matrix.os }}
       PYTHON: ${{ matrix.python-version }}