Uncap bashate

The bashate tool has been very stable for a while and we rarely expect
changes which may break existing scripts.

This removes the current capping to avoid updating the upper limit when
when a new release is created in bashate.

Change-Id: Iae94811aebf58b491d6b2b2773db88ac50fdd737
diff --git a/tox.ini b/tox.ini
index ec764ab..26cd68c 100644
--- a/tox.ini
+++ b/tox.ini
@@ -12,7 +12,7 @@
 # against devstack, just set BASHATE_INSTALL_PATH=/path/... to your
 # modified bashate tree
 deps =
-   {env:BASHATE_INSTALL_PATH:bashate==2.0.0}
+   {env:BASHATE_INSTALL_PATH:bashate}
 allowlist_externals = bash
 commands = bash -c "find {toxinidir}             \
          -not \( -type d -name .?\* -prune \)    \