Add documentation for github actions caching

[hasezoey]

Reminder Issue to add documentation to add a example on how to properly set-up github actions cache for MMS

[cefeboru]

I'm seeing multiple errors on GitHub Actions, about being unable to find the binary - Sometimes it passes, others it won't. What would be the proper way to cache it?

[hasezoey]

i intend to add a proper guide with the following options and not just for github-actions, but for now:
caching in github actions is done easily:

mongodb-memory-server/.github/workflows/tests.yml

Lines 35 to 40 in a3b2254

	- name: Load MongoDB binary cache
	id: cache-mongodb-binaries
	uses: actions/cache@v3
	with:
	path: ~/.cache/mongodb-binaries
	key: ${{ matrix.node-version }}

or also:

mongoose:
https://github.com/Automattic/mongoose/blob/b864f622da5fa626980d8df4ed159a8ec8afb7a2/.github/workflows/test.yml#L67-L72

typegoose:
https://github.com/typegoose/typegoose/blob/e8470f4b4621c579d26c70d0fb76a68fc3909042/.github/workflows/tests.yml#L30-L35

I'm seeing multiple errors on GitHub Actions, about being unable to find the binary

please open a issue / discussion or ask on our discord about setup / error help

[cefeboru]

Thanks!