meta: bump actions/setup-python from 4.5.0 to 4.6.0

Sync with other files updated in dca352a.

PR-URL: #47968
Reviewed-By: Yagiz Nizipli <yagiz@nizipli.com>
Reviewed-By: Moshe Atlow <moshe@atlow.co.il>
Reviewed-By: Darshan Sen <raisinten@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>

Author: Trott

.github/workflows/tools.yml

@@ -271,7 +271,7 @@ jobs:
           persist-credentials: false
       - name: Set up Python ${{ env.PYTHON_VERSION }}
         if: matrix.id == 'icu' && (github.event_name == 'schedule' || inputs.id == 'all' || inputs.id == matrix.id)
-        uses: actions/setup-python@d27e3f3d7c64b4bbf8e4abfb9b63b83e846e0435  # v4.5.0
+        uses: actions/setup-python@57ded4d7d5e986d7296eab16560982c6dd7c923b  # v4.6.0
         with:
           python-version: ${{ env.PYTHON_VERSION }}
       - run: ${{ matrix.run }}