Remove trailing '.' in lxml requirement that pip doesn't like

Author: jithunnair-amd

.ci/docker/requirements-ci.txt

@@ -306,7 +306,7 @@ pywavelets==1.5.0 ; python_version >= "3.12"
 #Pinned versions: 1.4.1
 #test that import:
 
-lxml==5.0.0.
+lxml==5.0.0
 #Description: This is a requirement of unittest-xml-reporting
 
 # Python-3.9 binaries