Add logs to see the libxml2 version that is beign used by xmlsec and lxml

Author: mxamin

.github/workflows/linuxbrew.yml

@@ -49,5 +49,7 @@ jobs:
           export LDFLAGS="-L$(brew --prefix)/lib"
           export PKG_CONFIG_PATH="$(brew --prefix)/opt/libxml2/lib/pkgconfig"
           pip3 install --upgrade --no-binary=lxml -r requirements-test.txt
+          python3 -c "from lxml import etree; print('lxml libxml2 compiled:', etree.LIBXML_COMPILED_VERSION); print('lxml libxml2 runtime:', etree.LIBXML_VERSION)"
           pip3 install xmlsec --only-binary=xmlsec --no-index --find-links=dist/
+          python3 -c "import xmlsec; print('xmlsec libxml2 compiled:', xmlsec.get_libxml_compiled_version()); print('xmlsec libxml2 runtime:', xmlsec.get_libxml_version()); print('xmlsec libxmlsec:', xmlsec.get_libxmlsec_version())"
           pytest -v --color=yes