[RF] Enable roofit_multiprocess on the CI

Part of the effort to leave nothing untested.

.github/workflows/root-ci-config/buildconfig/global.txt

@@ -7,7 +7,7 @@ asserts=OFF
 builtin_cfitsio=OFF
 builtin_clang=ON
 builtin_cling=ON
-builtin_cppzmq=OFF
+builtin_cppzmq=ON
 builtin_davix=OFF
 builtin_fftw3=OFF
 builtin_freetype=OFF
@@ -29,7 +29,7 @@ builtin_vdt=OFF
 builtin_veccore=OFF
 builtin_xrootd=OFF
 builtin_xxhash=OFF
-builtin_zeromq=OFF
+builtin_zeromq=ON
 builtin_zlib=OFF
 builtin_zstd=OFF
 ccache=OFF
@@ -77,7 +77,7 @@ qt5web=OFF
 qt6web=OFF
 r=OFF
 roofit=ON
-roofit_multiprocess=OFF
+roofit_multiprocess=ON
 root7=ON
 rootbench=OFF
 roottest=ON

.github/workflows/root-ci-config/buildconfig/windows10.txt

@@ -23,6 +23,7 @@ pgsql=OFF
 pyroot2=OFF
 pyroot3=ON
 pythia8=OFF
+roofit_multiprocess=OFF
 runtime_cxxmodules=OFF
 sqlite=OFF
 ssl=OFF