Add collective.dexteritytextindexer on auto-checkout to fix py3 tests…

… because version 2.2.2 is unreleased now

buildout.cfg

@@ -2,6 +2,8 @@
 extends =
     https://raw.githubusercontent.com/collective/buildout.plonetest/master/test-5.x.cfg
     https://raw.githubusercontent.com/collective/buildout.plonetest/master/qa.cfg
+
+extensions = mr.developer
 package-name = collective.taxonomy
 package-extras = [test]
 package-min-coverage = 67
@@ -13,6 +15,12 @@ parts +=
 eggs +=
     Products.PDBDebugMode
 
+auto-checkout =
+    collective.dexteritytextindexer
+
+[sources]
+collective.dexteritytextindexer = git https://github.com/collective/collective.dexteritytextindexer.git
+
 [createcoverage]
 recipe = zc.recipe.egg
 eggs = createcoverage