Add Dependabot, Update Dependencies and Workflows (#1440)

Build may fail because of some major dependency updates. Needs changes,
changes/fixes welcomed.

Main goal is keeping all things up-to-date.

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Co-authored-by: weishu <twsxtd@gmail.com>

.github/workflows/build-su.yml

@@ -40,7 +40,7 @@ jobs:
     - name: Bot session cache
       if: github.event_name != 'pull_request' && steps.need_upload.outputs.UPLOAD == 'true'
       id: bot_session_cache
-      uses: actions/cache@v3
+      uses: actions/cache@v4
       with:
         path: scripts/ksubot.session
         key: ${{ runner.os }}-bot-session