fix: Fixes for automated testing

[claytonparnell]

Issue #, if available:

Description of changes: Bunch of fixes to support testing on codebuild. Fixes failures for:

• keras - failed with cuda errors due to installing incompatible cuda-nvcc. Adding version constraints fixes this.
• pytorch - failed with libcuda.so: cannot open shared object file: No such file or directory. Adding a link between libcuda.so.1 to libcuda.so resolves. This is also done in codebuild, but must not carry over into the test dockerfile
• autogluon - saw errors that shmsize was not sufficient. Increasing from default 64mb to 256mb resolves. Also, since there are ~5 pkgs containing autogluon, the version fetching line wasn't working. Updated to pull version correctly.

Additional failures

• sm-python-sdk - saw failures for 3 tests. 2 related to not having docker access, and 1 related to not having credentials. Will revisit and skip, and look into if we can remove some of the currently skipped tests.

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[nikhilumeshsargur]

Approving changes