Bump deepdiff from 8.2.0 to 8.6.1 in /backend

[dependabot]

Bumps deepdiff from 8.2.0 to 8.6.1.

Release notes

Sourced from deepdiff's releases.

8.6.1

DeepDiff 8-6-1

• Patched security vulnerability in the Delta class which was vulnerable to class pollution via its constructor, and when combined with a gadget available in DeltaDiff itself, it could lead to Denial of Service and Remote Code Execution (via insecure Pickle deserialization).

8.5.0

• Updating deprecated pydantic calls
• Switching to pyproject.toml
• Fix for moving nested tables when using iterable_compare_func. by
• Fix recursion depth limit when hashing numpy.datetime64
• Moving from legacy setuptools use to pyproject.toml

8.4.1

• pytz is not required.

8.4.0

• Adding BaseOperatorPlus base class for custom operators
• default_timezone can be passed now to set your default timezone to something other than UTC.
• New summarization algorithm that produces valid json
• Better type hint support

Commits

• 60ac5b9 Merge commit from fork
• 683756e Bump version: 8.6.0 → 8.6.1 and add security vulnerability notes
• c69c06c Security fix: Prevent class pollution and remote code execution in Delta
• b639fec updating the docs
• 6f3d5ee Bump version: 8.5.0 → 8.6.0
• 388a60e Merge pull request #557 from seperman/dev
• 0978fb8 adding docs for 8.6.0
• d469a4c making type hints compatible with old python
• e16507c fixing type hints
• 33de087 adding type hints to search
• Additional commits viewable in compare view

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