Remove CLA, since Upside Travel no longer exists. Update CONTRIBUTING.md with a short blurb on how to run tests

Author: dantheman39

CONTRIBUTING.md

@@ -24,22 +24,10 @@ This will install the repo version of
 `graphene-pydantic` and then install the development dependencies. Once that
 has completed, you can start developing.
 
-## Contributor License Agreement
+### Running tests
 
+To run the tests locally, you can simply run `pytest`.
 
-We require all contributors to sign the [Upside CLA](./CONTRIBUTOR_LICENSE_AGREEMENT.md).
-
-In simple terms, the CLA affirms that the work you're contributing is original,
-that you grant Upside permission to use that work (including license to any
-patents necessary), and that Upside may relicense your work for our commercial
-products if necessary. Note that this description is a summary and the specific
-legal terms should be read directly in the CLA.
-
-The CLA does not change the terms of the standard open source license used by
-our software. You are still free to use our projects within your own projects or
-businesses, republish modified source, and more. Please reference the license of
-this project to learn more.
-
-To sign the CLA, open a pull request as usual. If you haven't signed the CLA
-yet, we cannot merge any pull request until the CLA is signed. You only need to
-sign the CLA once.
+In CI, we run tests using [nox](https://nox.thea.codes/en/stable/index.html),
+which runs the test multiple times using different package versions. Run
+`poetry run nox` to run the entire test suite.

README.md

@@ -169,7 +169,7 @@ This project depends on third-party code which is subject to the licenses set fo
 
 ### Contributing
 
-Please see the [Contributing Guide](./CONTRIBUTING.md). Note that you must sign the [CLA](./CONTRIBUTOR_LICENSE_AGREEMENT.md).
+Please see the [Contributing Guide](./CONTRIBUTING.md).
 
 ### Caveats