fix(instrumentation-redis): Return underlying modules from redis instrumentation

[DrewCorlin]

Which problem is this PR solving?

Return version-specific module instrumentations from version-agnostic instrumentation, to enable consumers of this library to get access to the instrumentations that are being applied without having to know this instrumentation is really just a wrapper for 2 others.

Short description of the changes

I'm the author of https://github.com/DrewCorlin/opentelemetry-node-bundler-plugins. This library depends on getModuleDefinitions() to know what modules to patch (in it's case to patch them during the bundling of an app). Updating to the latest version to support instrumentation of redis@v5 uncovered this.

Rather than special casing this in my plugin I thought it made sense to have this module behave consistently with the rest.

Also let me know if I should remove the link to my plugin here. I thought it was useful context, but understand if links to other projects that depend on this aren't desired.

[trentm]

https://github.com/DrewCorlin/opentelemetry-node-bundler-plugins

👀 Nice!

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 91.44%. Comparing base (d60ff3a) to head (e294d78).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #3025   +/-   ##
=======================================
  Coverage   91.44%   91.44%           
=======================================
  Files         146      146           
  Lines        8192     8194    +2     
  Branches     1846     1846           
=======================================
+ Hits         7491     7493    +2     
  Misses        701      701           

Flag	Coverage Δ
instrumentation-redis	85.34% <100.00%> (+0.07%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Files with missing lines	Coverage Δ
packages/instrumentation-redis/src/redis.ts	78.04% <100.00%> (+1.12%)	⬆️

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[opentelemetrybot]

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