Disable failing FEM test case TestSolverCalculix

Disable failing FEM test case TestSolverCalculix

Bug: https://github.com/FreeCAD/FreeCAD/issues/7188
Bug-Debian: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1017598
Forwarded: not-needed, Debian specific.
Last-Update: 2022-08-18 <YYYY-MM-DD, last update of the meta-information, optional>

The upstream bug tracker suggests that this is a problem with the test, as it seems
floats for the input are very similiar, only differing by the LSB.

This patch disables the test.
Last-Update: 2022-08-18 <YYYY-MM-DD, last update of the meta-information, optional>
Gbp-Pq: Name fix-1017598.patch