Move WORKDIR to storage disk in GPU CI & Use dynamo export for tests

[xiaoyu-work]

Describe your changes

1. Remove optimum-intel version pin from tests, so we can test the latest transformers.
2. Use dynamo export by default in our tests, since torchscript is no longer been maintained.
3. Fix a couple of tests for latest transformers and dynamo export change. Skip a couple of tests that need further investigations.
4. Move GPU agent work dir and docker work dir to storage disk, otherwise the main disk will be out of space.
5. Add register_dynamic_cache_export_support to fix dynamic cache registration issue.
6. Remove default 13 target_opset in tests.

Checklist before requesting a review

• Add unit tests for this change.
• Make sure all tests can pass.
• Update documents if necessary.
• Lint and apply fixes to your code by running lintrunner -a
• Is this a user-facing change? If yes, give a description of this change to be included in the release notes.

(Optional) Issue link

[shaahji]

Any reason why we don't just toggle the default value for use_dynamo_exporter in OnnxConversion. It would avoid having to change all the tests.

[xiaoyu-work]

Any reason why we don't just toggle the default value for use_dynamo_exporter in OnnxConversion. It would avoid having to change all the tests.

let me check this with devang

ooo