Disable Perl bindings on Windows

Accidentally, the GitHub CI started to build Perl bindings on Windows
because the dependencies become available. However, the build fails
because our code isn't ready to be built on Windows.  This change will
ensure the Perl bindings are kept disabled on Windows.

See: https://github.com/OpenSCAP/openscap/actions/runs/8879756994/job/24378248762?pr=2104

CMakeLists.txt

@@ -360,7 +360,7 @@ option(ENABLE_MITRE "enables MITRE tests -- requires specific environment suppor
 
 # ---------- LANGUAGE BINDINGS
 cmake_dependent_option(ENABLE_PYTHON3 "if enabled, the python3 swig bindings will be built" ON "PYTHONINTERP_FOUND;SWIG_FOUND;PYTHONLIBS_FOUND" OFF)
-cmake_dependent_option(ENABLE_PERL "if enabled, the perl swig bindings will be built" ON "PERLLIBS_FOUND;SWIG_FOUND" OFF)
+cmake_dependent_option(ENABLE_PERL "if enabled, the perl swig bindings will be built" ON "PERLLIBS_FOUND;SWIG_FOUND;NOT WIN32" OFF)
 
 # ---------- NO IDEA WHAT THIS IS FOR
 set(WANT_BASE64 TRUE CACHE BOOL "wants builtin Base64")