Changelog
* 2285b8bc22 Adding codecov to this repo (2772)
* e6341a33c7 Bump google.golang.org/grpc from 1.29.1 to 1.53.0 in /sdk
* e035d7c232 Fix panics in applyTags when tags are unknown (2776)
* 8e8d685d47 Introduce provider upgrade tests (2714)
* 18133d0d5c Merge remote-tracking branch 'origin/dependabot/go_modules/sdk/google.golang.org/grpc-1.53.0' into combined-pr-branch
* 2cadeb6201 Switch from ssh to https for submodule