fix: integs - pytorch transformer deps and add test retry

[mufaddal-rohawala]

Issue #, if available:

Description of changes:

1. Pinned the deps of pytorch training integ test to unblock repo contribution.
2. Added retries to some known flaky slow tests.

Testing done:
Tested in personal account.

Merge Checklist

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General

• I have read the CONTRIBUTING doc
• I certify that the changes I am introducing will be backward compatible, and I have discussed concerns about this, if any, with the Python SDK team
• I used the commit message format described in CONTRIBUTING
• I have passed the region in to all S3 and STS clients that I've initialized as part of this change.
• I have updated any necessary documentation, including READMEs and API docs (if appropriate)

Tests

• I have added tests that prove my fix is effective or that my feature works (if appropriate)
• I have added unit and/or integration tests as appropriate to ensure backward compatibility of the changes
• I have checked that my tests are not configured for a specific region or account (if appropriate)
• I have used unique_name_from_base to create resource names in integ tests (if appropriate)

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.

[sagemaker-bot]

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• CodeBuild project: sagemaker-python-sdk-notebook-tests
• Commit ID: 97c88c6
• Result: SUCCEEDED
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• Commit ID: 97c88c6
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• CodeBuild project: sagemaker-python-sdk-local-mode-tests
• Commit ID: 97c88c6
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AWS CodeBuild CI Report

• CodeBuild project: sagemaker-python-sdk-unit-tests
• Commit ID: 97c88c6
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[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 89.24%. Comparing base (1ae7ce9) to head (97c88c6).
⚠️ Report is 1193 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #3849      +/-   ##
==========================================
- Coverage   89.96%   89.24%   -0.72%     
==========================================
  Files        1140      267     -873     
  Lines      105300    26021   -79279     
==========================================
- Hits        94733    23223   -71510     
+ Misses      10567     2798    -7769     

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AWS CodeBuild CI Report

• CodeBuild project: sagemaker-python-sdk-notebook-tests
• Commit ID: 97c88c6
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AWS CodeBuild CI Report

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AWS CodeBuild CI Report

• CodeBuild project: sagemaker-python-sdk-local-mode-tests
• Commit ID: 97c88c6
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AWS CodeBuild CI Report

• CodeBuild project: sagemaker-python-sdk-slow-tests
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AWS CodeBuild CI Report

• CodeBuild project: sagemaker-python-sdk-unit-tests
• Commit ID: 97c88c6
• Result: SUCCEEDED
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[knikure]

@mufaddal-rohawala Can we also mark this test for rerun tests/integ/test_airflow_config.py?