Fix release GitHub Action workflow

Version 3.0.0

Fix Python 3.6 dependencies

Version 2.2.1

* Additional HTTP Headers for JSON-RPC Over HTTP (#222)

Version 2.2.0

* Add support to Python 3.10

Version 2.1.0

* Restructures the project (#91)
* Add dependabot.yml
* Add support to async and await
* Add badge docs
* Add FUNDING.yml
* Unindent & highlight code sections (#150)

 Version 2.0.0

* Add support to Flask 2.0.x (#88)
* Upgrade Flask version and dependencies versions
* Restructure requirements files

Version 1.1.1

* Add support to Python 3.9
* Update typing_inspect version
* Limit Flask version to <2.0
* Update copyright year

Version 1.1.0

* Add support a register class method (#79)
* Add RPC Batch (#80)

Version 1.0.1

* Fix the JSON-RPC method signature (return) validation (#77