Bump @apollo/client npm version to 3.7.0-beta.6.

Bump @apollo/client npm version to 3.7.0-beta.5.

Bump @apollo/client npm version to 3.7.0-beta.4.

Bump @apollo/client npm version to 3.6.8.

Bump @apollo/client npm version to 3.6.7.

Bump @apollo/client npm version to 3.7.0-beta.3.

Bump @apollo/client npm version to 3.7.0-beta.2.

Bump @apollo/client npm version to 3.7.0-beta.1.

Bump @apollo/client npm version to 3.6.6.

Bump @apollo/client npm version to 3.7.0-beta.0.