math/deal.ii: fix with OCCT-8 + some modifications

• fix with OpenCascade-8.0.0 (primary goal);
• CGAL and Taskflow are detected as build dependencies;
• kokkos is now fixed;
• GMP and MPFR are used as lib dependencies;
• the port was linked both with BLIS and NETLIB: replace them by OpenBLAS (note: qa still reports indirect linkage with BLIS and NETLIB);
• switch to c++23.

PR: 296947
Reported by: yuri
Approved by: yuri (maintainer)