[Catalog] Bump catalog schema version

[Michaelvll]

Due to the recent update of GCP catalog that adds H100 instances with 1,2,4 ACC counts #4456, our gcp_catalog.py met an backward compatibility issue, where the newly added H100:1 instances causes a KeyError.

  File "/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-packages/sky/clouds/service_catalog/gcp_catalog.py", line 448, in <lambda>
    lambda x: _get_host_instance_type(x['AcceleratorName'],
              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-packages/sky/clouds/service_catalog/gcp_catalog.py", line 391, in _get_host_instance_type
    instance_types = _ACC_INSTANCE_TYPE_DICTS[acc_name][acc_count]
                     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^
KeyError: 1

We have to bump the catalog schema version to ensure the older SkyPilot version works, by keeping the original catalog version to have no H100:1 instances.

This should go in after: skypilot-org/skypilot-catalog#105

Tested (run the relevant ones):

• Code formatting: bash format.sh
• Any manual or new tests for this PR (please specify below)
• All smoke tests: pytest tests/test_smoke.py
• Relevant individual smoke tests: pytest tests/test_smoke.py::test_fill_in_the_name
• Backward compatibility tests: conda deactivate; bash -i tests/backward_compatibility_tests.sh

[romilbhardwaj]

Do we still need catalog schema bump if we use .get(acc_count, None)? won't it work with v5?

[Michaelvll]

No, since this changes will not affect the old SkyPilot version, we have to bump the catalog version to ensure old skypilot release can work. We add this get for future proof. : )

[romilbhardwaj]

Oh nvm, I think I understand - we still need the catalog version bump for back compat.