Update xz to 5.0.5.
diff --git a/PCbuild/pyproject.props b/PCbuild/pyproject.props
index ebce448..c78a523 100644
--- a/PCbuild/pyproject.props
+++ b/PCbuild/pyproject.props
@@ -19,7 +19,7 @@
<externalsDir>..\..</externalsDir>
<sqlite3Dir>$(externalsDir)\sqlite-3.8.1</sqlite3Dir>
<bz2Dir>$(externalsDir)\bzip2-1.0.6</bz2Dir>
- <lzmaDir>$(externalsDir)\xz-5.0.3</lzmaDir>
+ <lzmaDir>$(externalsDir)\xz-5.0.5</lzmaDir>
<opensslDir>$(externalsDir)\openssl-1.0.1e</opensslDir>
<tcltkDir>$(externalsDir)\tcltk</tcltkDir>
<tcltk64Dir>$(externalsDir)\tcltk64</tcltk64Dir>