Bumps [github.com/stretchr/testify](https://github.com/stretchr/testify) from 1.6.1 to 1.7.0.
- [Release notes](https://github.com/stretchr/testify/releases)
- [Commits](https://github.com/stretchr/testify/compare/v1.6.1...v1.7.0

)

Signed-off-by: dependabot[bot] <support@github.com>

[Fix] file service discovery path can run in windows

Fix/consul unreg

Upgrade nacos-sdk-go version to v1.0.3

Fix: change client error message of issue #972

Ftr: move task pool to endpoint layer

Ftr/grpc transfer metadata by ctx support

fix errors by linter