SunMao EventRulehandler for Mindspore v1.0

What's Changed

• Add env for itsdangerous 2.0.1 by @ZichengQu in #6
• Rules decoupling by @ZichengQu in #5

New Contributors

• @ZichengQu made their first contribution in #6

Full Changelog: https://github.com/sunmao-dx/mindspore-event-rulehandler/commits/v1.0