tests: move module test deps and .tav.yml to separate packages

[trentm]

This is just a first stab, so far.

[apmmachine]

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Build stats

• Start Time: 2021-11-09T05:36:32.770+0000

• Duration: 20 min 34 sec

• Commit: deb582e

Test stats 🧪

Test	Results
Failed	0
Passed	22
Skipped	0
Total	22

🤖 GitHub comments

To re-run your PR in the CI, just comment with:

• /test : Re-trigger the build.

• run module tests for <modules> : Run TAV tests for one or more modules, where <modules> can be either a comma separated list of modules (e.g. memcached,redis) or the string literal ALL to test all modules

• run benchmark tests : Run the benchmark test only.