Lock ansible-lint version in tox

Sem-Ver: fix
Change-Id: Id868ea6c1d14de8425944244d1243384acd143be
diff --git a/tox.ini b/tox.ini
index 3c73ab2..306e9e9 100644
--- a/tox.ini
+++ b/tox.ini
@@ -29,7 +29,7 @@
 [testenv:linters]
 deps =
     {[testenv:build]deps}
-    ansible-lint
+    ansible-lint<6.3.0
 commands =
     ansible-lint {toxinidir}/roles {posargs}