chore(*): add CODEOWNERS to repo

[sfoster1]

Adds configuration for github code owners
(https://help.github.com/en/github/creating-cloning-and-archiving-repositories/about-code-owners)
to the repo

[Kadee80]

Should we add discovery-client/cpx here as well?

[Kadee80]

👨‍💻 👩‍💻
This is fantastic! Thanks for this.

[codecov]

Codecov Report

Merging #4941 into edge will increase coverage by 0.08%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##             edge    #4941      +/-   ##
==========================================
+ Coverage   67.76%   67.85%   +0.08%     
==========================================
  Files        1060     1060              
  Lines       35586    35698     +112     
==========================================
+ Hits        24116    24222     +106     
- Misses      11470    11476       +6

Impacted Files	Coverage Δ
opentrons/hardware_control/modules/update.py	39.65% <0%> (-9.21%)	⬇️
opentrons/drivers/thermocycler/driver.py	38.36% <0%> (+0.07%)	⬆️
api/tests/opentrons/labware/test_modules.py	97.4% <0%> (+1.3%)	⬆️
opentrons/hardware_control/modules/__init__.py	61.4% <0%> (+1.4%)	⬆️
opentrons/hardware_control/modules/thermocycler.py	91.98% <0%> (+1.93%)	⬆️
opentrons/hardware_control/modules/types.py	90% <0%> (+2.5%)	⬆️
opentrons/hardware_control/modules/magdeck.py	91.42% <0%> (+3.92%)	⬆️
opentrons/hardware_control/modules/tempdeck.py	85.6% <0%> (+5.29%)	⬆️
...i/tests/opentrons/hardware_control/test_modules.py	88.03% <0%> (+15.3%)	⬆️

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[mcous]

🦉