Use PYTHON_SITEPACKAGES_DIR instead of hard-coded site-packages directory path

The following paths have been replaced with PYTHON_SITEPACKAGES_DIR:

- "${libdir}/${PYTHON_DIR}/site-packages"
- "${libdir}/python${PYTHON_BASEVERSION}/site-packages"
- "${libdir}/python*/site-packages"
- "${libdir}/python3.*/site-packages"

Signed-off-by: alperak <alperyasinak1@gmail.com>
Signed-off-by: Khem Raj <raj.khem@gmail.com>

meta-python/recipes-devtools/python/python3-pydantic-core_2.16.3.bb

@@ -36,12 +36,12 @@ RDEPENDS:${PN}-ptest += "\
 "
 
 do_install:append() {
-    for f in ${D}/${libdir}/${PYTHON_DIR}/site-packages/pydantic_core/_pydantic_core.*.so
+    for f in ${D}/${PYTHON_SITEPACKAGES_DIR}/pydantic_core/_pydantic_core.*.so
     do
         fname=`basename $f`
         lname=`echo $fname | sed 's/musl/gnu/'`
         if [ "$fname" != "$lname" ]; then
-            mv $f ${D}/${libdir}/${PYTHON_DIR}/site-packages/pydantic_core/$lname
+            mv $f ${D}/${PYTHON_SITEPACKAGES_DIR}/pydantic_core/$lname
         fi
     done
 }