Products.validation: renamed master to main.

[ci skip]

sources.cfg

@@ -156,7 +156,7 @@ Products.PluggableAuthService       = git ${remotes:zope}/Products.PluggableAuth
 Products.PluginRegistry             = git ${remotes:zope}/Products.PluginRegistry.git pushurl=${remotes:zope_push}/Products.PluginRegistry.git branch=master
 Products.PortalTransforms           = git ${remotes:plone}/Products.PortalTransforms.git pushurl=${remotes:plone_push}/Products.PortalTransforms.git branch=master
 Products.statusmessages             = git ${remotes:plone}/Products.statusmessages.git pushurl=${remotes:plone_push}/Products.statusmessages.git branch=master
-Products.validation                 = git ${remotes:plone}/Products.validation.git pushurl=${remotes:plone_push}/Products.validation.git branch=master
+Products.validation                 = git ${remotes:plone}/Products.validation.git pushurl=${remotes:plone_push}/Products.validation.git branch=main
 Products.ZopeVersionControl         = git ${remotes:zope}/Products.ZopeVersionControl.git pushurl=${remotes:zope_push}/Products.ZopeVersionControl.git branch=master
 repoze.xmliter                      = git https://github.com/repoze/repoze.xmliter.git pushurl[email protected]:repoze/repoze.xmliter.git branch=master
 robotsuite                          = git ${remotes:collective}/robotsuite.git pushurl=${remotes:collective_push}/robotsuite.git branch=master