chore: prepare v6.0.1 (#123)

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## Description
<!-- Small description -->

This PR prepares v6.0.1 release

## Checklist
- [ ] Targeted PR against correct branch.
- [ ] Linked to Github issue with discussion and accepted design OR link
to spec that describes this work.
- [ ] Wrote unit tests.  
- [ ] Re-reviewed `Files changed` in the Github PR explorer.

CHANGELOG.md

@@ -1,3 +1,8 @@
+# v6.0.1
+
+### Changes
+- ([\#121](https://github.com/forbole/juno/pull/121)) Added back authz message handler in worker
+
 # v6.0.0
 ### Changes
 - ([\#107](https://github.com/forbole/juno/pull/107)) Removed SDK codec dependency from remote mode