Matlab-proxy

**Full Changelog**: https://github.com/mathworks/matlab-proxy/compare/v0.5.4...v0.5.6

Changes:
1. Validation fixes for MLM server triads
2. MacOS Testing
3. ESLINT bugfixes
4. IMSHIELDS update

Patch Security vulnerabilities and increase kernel timeout to 120 seconds.

Contains bug fixes which prevented some JupyterHub installations which set passwords at the notebook level from using the kernel.

Minor bug refactoring and Preparing for windows support.

Minor bug fixes and updates to packages to address CVE concerns.

**Full Changelog**: https://github.com/mathworks/jupyter-matlab-proxy/compare/v0.5.0...v0.5.1

Introducing MATLAB Kernel support for Jupyter Notebooks.