chore: add team-deck to CODEOWNERS

[rainest]

In the course of #339 I found that while there are team-deck members around during Americas hours, they're not actually allowed to approve go-kong PRs. They probably should be since the library is shared between teams.

Needs a main merge after #339 to silence the linter.

[codecov-commenter]

Codecov Report

Patch and project coverage have no change.

Comparison is base (91d5885) 52.77% compared to head (c41c65b) 52.77%.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #340   +/-   ##
=======================================
  Coverage   52.77%   52.77%           
=======================================
  Files          69       69           
  Lines        5095     5095           
=======================================
  Hits         2689     2689           
  Misses       1832     1832           
  Partials      574      574           

Flag	Coverage Δ
2.1.4	36.29% <ø> (ø)
2.2.1.3	46.77% <ø> (ø)
2.2.2	36.29% <ø> (ø)
2.3.3	36.34% <ø> (ø)
2.3.3.4	47.43% <ø> (ø)
2.4.1	36.42% <ø> (ø)
2.4.1.3	47.51% <ø> (ø)
2.5.1.2	47.51% <ø> (ø)
2.5.2	36.42% <ø> (ø)
2.6.1	36.42% <ø> (ø)
2.6.1.0	47.51% <ø> (ø)
2.7.2	36.42% <ø> (ø)
2.7.2.0	49.04% <ø> (ø)
2.8.3	36.42% <ø> (ø)
2.8.4.0	49.04% <ø> (ø)
3.0.2	35.87% <ø> (ø)
3.0.2.0	49.49% <ø> (ø)
3.1.1	37.36% <ø> (ø)
3.1.1.3	50.99% <ø> (ø)
3.2.2	37.42% <ø> (ø)
3.2.2.1	50.99% <ø> (ø)
community	37.97% <ø> (ø)
enterprise	51.54% <ø> (ø)
integration	52.77% <ø> (ø)

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[pmalek]

Needed to add write access for Kong/team-deck and only Github stopped complaining.