ci: use linux-x86_64 instead of linux runner tag for release jobs
The last release is stuck due to the deprecated runner tag https://gitlab.kitware.com/paraview/catalyst/-/pipelines/364849
This MR should fix it.
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The last release is stuck due to the deprecated runner tag https://gitlab.kitware.com/paraview/catalyst/-/pipelines/364849
This MR should fix it.