Remove distinction between BLAS_SEQ and BLAS_PAR
FindBlas does not make any difference with parallel or sequential lib. This leads to trouble when searching for FFTW.
GitLab upgrade completed. Current version is 18.5.4
https://about.gitlab.com/releases/2025/09/18/gitlab-18-4-released/
https://about.gitlab.com/releases/2025/10/16/gitlab-18-5-released/
FindBlas does not make any difference with parallel or sequential lib. This leads to trouble when searching for FFTW.