Updated xz to 5.8.0 on manylinux2014 by removing po4a dependency

.github/workflows/wheels-dependencies.sh

@@ -42,11 +42,7 @@ HARFBUZZ_VERSION=11.0.0
 LIBPNG_VERSION=1.6.47
 JPEGTURBO_VERSION=3.1.0
 OPENJPEG_VERSION=2.5.3
-if [[ $MB_ML_VER == 2014 ]]; then
-  XZ_VERSION=5.6.4
-else
-  XZ_VERSION=5.8.0
-fi
+XZ_VERSION=5.8.0
 TIFF_VERSION=4.7.0
 LCMS2_VERSION=2.17
 ZLIB_VERSION=1.3.1
@@ -56,6 +52,20 @@ BZIP2_VERSION=1.0.8
 LIBXCB_VERSION=1.17.0
 BROTLI_VERSION=1.1.0
 
+if [[ $MB_ML_VER == 2014 ]]; then
+    function build_xz {
+        if [ -e xz-stamp ]; then return; fi
+        yum install -y gettext-devel
+        fetch_unpack https://tukaani.org/xz/xz-$XZ_VERSION.tar.gz
+        (cd xz-$XZ_VERSION \
+            && ./autogen.sh --no-po4a \
+            && ./configure --prefix=$BUILD_PREFIX \
+            && make -j4 \
+            && make install)
+        touch xz-stamp
+    }
+fi
+
 function build_pkg_config {
     if [ -e pkg-config-stamp ]; then return; fi
     # This essentially duplicates the Homebrew recipe