minor #7446 Change type of arguments min and max (apetitpa)

This PR was submitted for the master branch but it was merged into the 2.7 branch instead (closes #7446).

Discussion
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Change type of arguments min and max

Min and max arguments are of type integers but passed as strings in the annotation example.

Commits
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368c431 Change type of arguments min and max

Author: xabbuh

reference/constraints/Count.rst

@@ -38,8 +38,8 @@ you might add the following:
         {
             /**
              * @Assert\Count(
-             *      min = "1",
-             *      max = "5",
+             *      min = 1,
+             *      max = 5,
              *      minMessage = "You must specify at least one email",
              *      maxMessage = "You cannot specify more than {{ limit }} emails"
              * )