perl-xml-libxml: add new versions and conflicts (fixes #44253) (#44254)

* Address #44253 by adding new versions and declaring conflicts for perl-xml-libxml

* [@spackbot] updating style on behalf of teaguesterling

* Update var/spack/repos/builtin/packages/perl-xml-libxml/package.py

Co-authored-by: Wouter Deconinck <wdconinc@gmail.com>

---------

Co-authored-by: Wouter Deconinck <wdconinc@gmail.com>

var/spack/repos/builtin/packages/perl-xml-libxml/package.py

@@ -19,10 +19,14 @@ class PerlXmlLibxml(PerlPackage):
 
     license("GPL-1.0-or-later OR Artistic-1.0-Perl")
 
+    version("2.0210", sha256="a29bf3f00ab9c9ee04218154e0afc8f799bf23674eb99c1a9ed4de1f4059a48d")
+    version("2.0209", sha256="b4a5abbcd689aa2fbbc8b7b45339e961c4984e48108494eb6c282b4748222425")
     version("2.0201", sha256="e008700732502b3f1f0890696ec6e2dc70abf526cd710efd9ab7675cae199bc2")
 
     depends_on("libxml2")
     depends_on("perl-xml-namespacesupport", type=("build", "run"))
     depends_on("perl-xml-sax", type=("build", "run"))
     depends_on("perl-xml-sax-base", type=("build", "run"))
     depends_on("perl-alien-libxml2", type="build")
+
+    conflicts("%gcc@14:", when="@:2.0209")