Merge pull request #242012 from trofi/librdf_raptor2-libxml2-fix

librdf_raptor2: backport fix for `libxml2-2.11`

pkgs/development/libraries/librdf/raptor2.nix

···
       url = "https://github.com/dajobe/raptor/commit/fa1ef9a27d8762f5588ac2e92554a188e73dee9f.diff";
       sha256 = "sha256-zXIbrYGgC9oTpiD0WUikT4vRdc9b6bsyfnDkwUSlqao=";
     })
+    # pull upstream fix for libxml2-2.11 API compatibility:
+    #   https://github.com/dajobe/raptor/pull/58
+    (fetchpatch {
+      name = "libxml2-2.11.patch";
+      url = "https://github.com/dajobe/raptor/commit/4dbc4c1da2a033c497d84a1291c46f416a9cac51.patch";
+      hash = "sha256-fHfvncGymzMtxjwtakCNSr/Lem12UPIHAAcAac648w4=";
+    })
   ];
 
   nativeBuildInputs = [ pkg-config cmake perl bison flex ];