Fix arm64 error at google/versions

[F-X64]

Behavior
When accessing /google/versions an error is thrown

  web-1  |   File "/code/cid/main.py", line 86, in google_versions
  web-1  |     return crud.find_available_google_versions(db)
  web-1  |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  web-1  |   File "/code/cid/crud.py", line 348, in find_available_google_versions
  web-1  |     return sorted(versions, key=Version, reverse=True)
  web-1  |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  web-1  |   File "/usr/local/lib/python3.12/site-packages/packaging/version.py", line 202, in __init__
  web-1  |     raise InvalidVersion(f"Invalid version: '{version}'")
  web-1  | packaging.version.InvalidVersion: Invalid version: '9.arm64'

Expected Behavior
/google/versions should successfully return all unique versions, including arm64.

Fix
Add method to drop arm64 suffix before sorting.
Increase test coverage with edge cases and arm64 values.