Using two different extra-index-urls causes exception

[jgerster-wetec]

Checks

• I have checked that this issue has not already been reported.

• I have confirmed this bug exists on the latest version of pixi, using pixi --version.

Reproducible example

Can not provide a reproducible example as private index urls are involved.

[tool.pixi.pypi-options]
extra-index-urls = [
    "https://gitlab+deploy-token-6:<token>@<private-gitlab-instance>/api/v4/projects/83/packages/pypi/simple",
    "https://gitlab+deploy-token-8:<token>@<private-gitlab-instance>/api/v4/projects/74/packages/pypi/simple",
]

  × failed to solve the pypi requirements of 'dev' 'linux-64'
  ├─▶ cannot get wheel metadata
  ├─▶ Failed to fetch: `https://<private-gitlab-instance>/api/v4/projects/74/packages/pypi/files/
  │  aa6ba197b1d30bc218c1e43d129f40cabd63a36f6785421f0e432334858a1084/<private-package>-0.11.1-py3-none-
  │   any.whl#sha256=aa6ba197b1d30bc218c1e43d129f40cabd63a36f6785421f0e432334858a1084`
  ╰─▶ HTTP status client error (404 Not Found) for url (https://
      <private-gitlab-instance>/api/v4/projects/74/packages/pypi/files/
      aa6ba197b1d30bc218c1e43d129f40cabd63a36f6785421f0e432334858a1084/<private-package>-0.11.1-py3-none-
      any.whl#sha256=aa6ba197b1d30bc218c1e43d129f40cabd63a36f6785421f0e432334858a1084)

Issue description

Similar issue was reported with uv - astral-sh/uv#11501. Accoding to the release notes, this issue was fixed with uv version 0.6.1. So updating the uv dependency to >=0.6.1. might fix the problem.

Expected behavior

Using two extra-index-urls should be possible.