Update PyTorch dependency

[scap3yvt]

Fixes #856

Proposed Changes

• updated pytorch and torchio versions in setup
• made analogoes updates for docker files
• updated relevant documentation

Checklist

• CONTRIBUTING guide has been followed.
• PR is based on the current GaNDLF master .
• Non-breaking change (does not break existing functionality): provide as many details as possible for any breaking change.
• Function/class source code documentation added/updated (ensure typing is used to provide type hints, including and not limited to using Optional if a variable has a pre-defined value).
• Code has been blacked for style consistency and linting.
• If applicable, version information has been updated in GANDLF/version.py.
• If adding a git submodule, add to list of exceptions for black styling in pyproject.toml file.
• Usage documentation has been updated, if appropriate.
• Tests added or modified to cover the changes; if coverage is reduced, please give explanation.
• If customized dependency installation is required (i.e., a separate pip install step is needed for PR to be functional), please ensure it is reflected in all the files that control the CI, namely: python-test.yml, and all docker files [1,2,3].

[github-actions]

MLCommons CLA bot All contributors have signed the MLCommons CLA ✍️ ✅

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 94.40%. Comparing base (690c9e9) to head (5ea23cf).

Additional details and impacted files

@@                   Coverage Diff                   @@
##           new-apis_v0.1.0-dev     #857      +/-   ##
=======================================================
- Coverage                94.41%   94.40%   -0.02%     
=======================================================
  Files                      158      158              
  Lines                     9345     9345              
=======================================================
- Hits                      8823     8822       -1     
- Misses                     522      523       +1     

Flag	Coverage Δ
unittests	94.40% <ø> (-0.02%)	⬇️

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[sarthakpati]

LGTM