build(deps): bump pillow from 8.2.0 to 8.3.2 in /backend/ML

Bumps [pillow](https://github.com/python-pillow/Pillow) from 8.2.0 to 8.3.2.
- [Release notes](https://github.com/python-pillow/Pillow/releases)
- [Changelog](https://github.com/python-pillow/Pillow/blob/master/CHANGES.rst)
- [Commits](python-pillow/Pillow@8.2.0...8.3.2)

---
updated-dependencies:
- dependency-name: pillow
  dependency-type: indirect
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

backend/ML/Pipfile.lock

@@ -1,11 +1,19 @@
-click==7.1.2
+#
+# These requirements were autogenerated by pipenv
+# To regenerate from the project's Pipfile, run:
+#
+#    pipenv lock --requirements
+#
+
+-i https://pypi.python.org/simple/
+click==7.1.2; python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3, 3.4'
 fastapi==0.65.1
-h11==0.12.0
-numpy==1.20.3
+h11==0.12.0; python_version >= '3.6'
+numpy==1.21.2; python_version < '3.11' and python_version >= '3.7'
 opencv-python==4.5.2.52
-Pillow==8.2.0
-pydantic==1.8.2
+pillow==8.3.2
+pydantic==1.8.2; python_full_version >= '3.6.1'
 pytesseract==0.3.7
 starlette==0.14.2
-typing-extensions==3.10.0.0
+typing-extensions==3.10.0.2
 uvicorn==0.13.4