ci: Update the CI matrix

Author: tbabej

.github/workflows/tests.yaml

@@ -12,17 +12,20 @@ jobs:
           - TASK_VERSION: v2.5.1
           - TASK_VERSION: v2.5.3
           - TASK_VERSION: v2.6.0
-          - TASK_VERSION: develop
+          - TASK_VERSION: v2.6.2
+          # - TASK_VERSION: develop  # TODO: Requires adjustment to the build process
           - VIM_VERSION: v8.0.1850
           - VIM_VERSION: v8.1.2424
           - VIM_VERSION: v8.2.5172
           - VIM_VERSION: v9.0.0000
+          - VIM_VERSION: v9.1.1435
           - VIMWIKI_VERSION: dev
-          - PYTHON_VERSION: 3.6
-          - PYTHON_VERSION: 3.7
           - PYTHON_VERSION: 3.8
           - PYTHON_VERSION: 3.9
           - PYTHON_VERSION: "3.10"
+          - PYTHON_VERSION: 3.11
+          - PYTHON_VERSION: 3.12
+          - PYTHON_VERSION: 3.13
     continue-on-error: ${{ matrix.continue-on-error == true }}
     steps:
       - uses: actions/checkout@v2