Pinning provsion to released version

Currently issue in main causing problem in peadm ci

Author: Neil Anderson

.fixtures.yml

@@ -9,7 +9,9 @@ fixtures:
   repositories:
     facts: "https://github.com/puppetlabs/puppetlabs-facts.git"
     puppet_agent: "https://github.com/puppetlabs/puppetlabs-puppet_agent.git"
-    provision: "https://github.com/puppetlabs/provision.git"
+    provision:
+      repo: "https://github.com/puppetlabs/provision.git"
+      ref: "v3.0.1" 
     stdlib: "https://github.com/puppetlabs/puppetlabs-stdlib.git"
     apply_helpers: "https://github.com/puppetlabs/puppetlabs-apply_helpers"
     bolt_shim: "https://github.com/puppetlabs/puppetlabs-bolt_shim"