Merge pull request #1048 from plone/icalendar-700a1

Use icalendar 7.0.0a1. [6.2]

Author: davisagli

constraints.txt

@@ -124,7 +124,7 @@ collective.MockMailHost==3.0.0
 collective.monkeypatcher==2.0.1
 collective.recipe.omelette==2.0.0
 collective.recipe.vscode==0.1.9
-icalendar==6.3.1
+icalendar==7.0.0a1
 Products.DateRecurringIndex==3.0.1
 robotsuite==2.3.2
 five.customerize==4.0

versions.cfg

@@ -151,7 +151,7 @@ collective.MockMailHost = 3.0.0
 collective.monkeypatcher = 2.0.1
 collective.recipe.omelette = 2.0.0
 collective.recipe.vscode = 0.1.9
-icalendar = 6.3.1
+icalendar = 7.0.0a1
 Products.DateRecurringIndex = 3.0.1
 robotsuite = 2.3.2