Add SMDP support for TF 2.3.2

[indhub]

Description of changes:
Add SMDP support for TF 2.3.2

Testing done:
Tested model training with Tf 2.3.2 and SMDP

General

• I have read the CONTRIBUTING doc
• 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 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.

[ChoiByungWook]

I think 2.3.2 isn't supported currently:

sagemaker-python-sdk/src/sagemaker/image_uri_config/tensorflow.json

Line 245 in 24300c2

"2.3": "2.3.1",

[indhub]

TF 2.3.2 for DLC is on the way. This is a proactive change.

[indhub]

Looks like DLC with TF 2.3.2 is already released. Changes to python SDK is on the way.

[indhub]

Closing this PR.
#2223 handles this.