[docs] Add config for the Stale bot (#5625)
[docs] Add config for the Stale bot (#5625)

* Add config for the Stale bot

[https://github.com/marketplace/stale](https://github.com/marketplace/stale)

* Add one more "ignore" label to the bot config

* Exclude all bugs per the HoS' request
miherlosev/testcafe,miherlosev/testcafe,DevExpress/testcafe,VasilyStrelyaev/testcafe,AndreyBelym/testcafe,DevExpress/testcafe,AndreyBelym/testcafe,DevExpress/testcafe,DevExpress/testcafe,miherlosev/testcafe,miherlosev/testcafe,DevExpress/testcafe,VasilyStrelyaev/testcafe,VasilyStrelyaev/testcafe,VasilyStrelyaev/testcafe,AndreyBelym/testcafe,VasilyStrelyaev/testcafe,AndreyBelym/testcafe,miherlosev/testcafe,AndreyBelym/testcafe