Relax google-auth-oauthlib dependency to breaking changes (#6609)

Relax google-auth-oauthlib dependency to breaking changes only

Fixes:

```
tensorboard 2.14.0 depends on google-auth-oauthlib<1.1 but you have 1.1.0
```

Author: elgalu

tensorboard/pip_package/requirements.txt

@@ -19,7 +19,7 @@ absl-py >= 0.4
 # NOTE: this version should be >= the grpc version in our WORKSPACE file.
 grpcio >= 1.48.2
 google-auth >= 1.6.3, < 3
-google-auth-oauthlib >= 0.5, < 1.1
+google-auth-oauthlib >= 0.5, < 2
 markdown >= 2.6.8
 numpy >= 1.12.0
 # NOTE: this version must be >= the protoc version in our WORKSPACE file.