Add Chime webhook URL format check

[Hailong-am]

Add Chime webhook URL format check here
https://github.com/opensearch-project/notifications/blob/main/notifications/notifications/src/main/kotlin/org/opensearch/notifications/index/ConfigIndexingActions.kt#L64

it should have same url format check as Microsoft teams

[bblazek98]

Hello, could i be assigned to this issue?

[Hailong-am]

Hello, could i be assigned to this issue?

assigned

[zhichao-aws]

If we change this validation, we need to modify UT/IT in this repo, as well as in dashboards-notifications. The mock data doesn't have the correct format, and this will fail dashboards-notifications cypress test

[Noir01]

Since I'm also assigned to #787 and nearly done with it, can I be assigned to this?

[Hailong-am]

@bblazek98 Do you have chance to working this? otherwise, we can reassign it to @Noir01

[Noir01]

I don't think @bblazek98 is going to respond.

[Hailong-am]

I don't think @bblazek98 is going to respond.

reassign to @Noir01