Add changelog v1.2.1 (#3884)
Add changelog v1.2.1 (#3884)


VasilyStrelyaev/testcafe,DevExpress/testcafe,DevExpress/testcafe,VasilyStrelyaev/testcafe,miherlosev/testcafe,AndreyBelym/testcafe,DevExpress/testcafe,miherlosev/testcafe,VasilyStrelyaev/testcafe,DevExpress/testcafe,AndreyBelym/testcafe,miherlosev/testcafe,VasilyStrelyaev/testcafe,miherlosev/testcafe,AndreyBelym/testcafe,miherlosev/testcafe,VasilyStrelyaev/testcafe,AndreyBelym/testcafe,DevExpress/testcafe,AndreyBelym/testcafe