GitLab

* Set minimum CMake version to 3.21

Stop linking to nvtx.
Signed-off-by: Tim Moon <tmoon@nvidia.com>

* Update .github/workflows/build.yml
Co-authored-by: Kirthi Shankar Sivamani <ksivamani@nvidia.com>
Signed-off-by: Tim Moon <4406448+timmoon10@users.noreply.github.com>

* Revert Python version to 3.9
Signed-off-by: Tim Moon <4406448+timmoon10@users.noreply.github.com>

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Signed-off-by: Tim Moon <tmoon@nvidia.com>
Signed-off-by: Tim Moon <4406448+timmoon10@users.noreply.github.com>
Co-authored-by: Kirthi Shankar Sivamani <ksivamani@nvidia.com>