add Python 3.14 to github workflow, upgrade lint workflow to Python 3.13

Author: astanin

.github/workflows/lint.yml

@@ -9,7 +9,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: ['3.12']
+        python-version: ['3.13']
 
     steps:
     - uses: actions/checkout@v4

.github/workflows/tabulate.yml

@@ -8,7 +8,7 @@ jobs:
   build:
     strategy:
       matrix:
-        python-version: ['3.9', '3.10', '3.11', '3.12', '3.13']
+        python-version: ['3.9', '3.10', '3.11', '3.12', '3.13', '3.14']
         os: ["ubuntu-latest", "windows-latest", "macos-latest"]
     runs-on: ${{ matrix.os }}