add news entry

news/4747.vendor.rst

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+Update vendored dependencies
+- ``attrs`` from ``20.3.0`` to ``21.2.0``
+- ``backports.functools-lru-cache`` from ``1.6.1`` to ``1.6.4``
+- ``cerberus`` from ``1.3.2`` to ``1.3.4``
+- ``certifi`` from ``2020.11.8`` to `2021.5.30``
+- ``chardet`` from ``3.0.4`` to ``4.0.0``
+- ``click`` from ``7.1.2`` to ``8.0.1``
+- ``contextlib2`` from ``0.6.0post1`` to ``21.6.0``
+- ``distlib`` from ``0.3.1`` to ``0.3.2``
+- ``idna`` from ``2.10`` to ``3.2``
+- ``importlib-metadata`` from ``2.0.0`` to ``4.6.1``
+- ``importlib-resources`` from ``3.3.0`` to `5.2.0``
+- ``jinja2` from ``2.11.2`` to ``3.0.1``
+- ``markupsafe`` from ``1.1.1`` to ``2.0.1``
+- ``more-itertools`` from ``5.0.0`` to ``8.8.0``
+- ``packaging`` from ``20.8`` to ``21.0``
+- ``pep517`` from ``0.9.1`` to ``0.11.0``
+- ``pipdeptree`` from ``1.0.0`` to ``2.0.0``
+- ``ptyprocess`` from ``0.6.0`` to ``0.7.0``
+- ``python-dateutil`` from ``2.8.1`` to ``2.8.2``
+- ``python-dotenv`` from ``0.15.0 to ``0.19.0``
+- ``pythonfinder`` from ``1.2.5`` to ``1.2.7``
+- ``requests`` from ``2.25.0`` to ``2.26.0``
+- ``shellingham`` from ``1.3.2`` to ``1.4.0``
+- ``six`` from ``1.15.0`` to ``1.16.0``
+- ``tomlkit`` from ``0.7.0`` to ``0.7.2``
+- ``urllib3`` from ``1.26.1`` to ``1.26.6``
+- ``zipp`` from ``1.2.0`` to ``3.5.0``
+
+Add new vendored dependencies
+- ``charset-normalizer 2.0.3``
+- ``termcolor 1.1.0``
+- ``tomli 1.1.0``
+- ``wheel 0.36.2``