fix webtest version conflict

versions.cfg

@@ -19,7 +19,11 @@ version = __CURRENT_VERSION__
 
 [versions]
 # verify during plone version update 
-grpcio-tools=1.66.2
+
+# The conflict is caused by:
+#     zope-testbrowser 7.0 depends on WebTest>=2.0.30
+#     The user requested (constraint) webtest==3.0.1,==3.0.3
+webtest = 3.0.1
 
 # plone missing
 plone.patternslib = 1.3.0
@@ -98,6 +102,7 @@ design.plone.iocittadino = 1.1.5
 Brotli = 1.0.9
 cssselect2 = 0.7.0
 fonttools = 4.39.3
+grpcio-tools=1.66.2
 html5lib = 1.1
 isodate = 0.6.1
 pdfkit = 1.0.0