fix: make sure that the genai helm chart services work across namespaces

[tayritenour]

Description

When using genai on k8s clusters that use different namespaces for their resources pools, the existing services could not be resolved without specifying the k8s namespace that it was created in.

Test Plan

Should not need manual testing from release party.

Commentary (optional)

Checklist

• Changes have been manually QA'd
• User-facing API changes need the "User-facing API Change" label.
• Release notes should be added as a separate file under docs/release-notes/.
  See Release Note for details.
• Licenses should be included for new code which was copied and/or modified from any external code.

Ticket

[netlify]

✅ Deploy Preview for determined-ui canceled.

Name	Link
🔨 Latest commit	afa1cfe
🔍 Latest deploy log	https://app.netlify.com/sites/determined-ui/deploys/660dc11b471ca60008bdcad0

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 46.78%. Comparing base (943b2cb) to head (afa1cfe).

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #9102      +/-   ##
==========================================
+ Coverage   46.77%   46.78%   +0.01%     
==========================================
  Files        1155     1155              
  Lines      142469   142469              
  Branches     2385     2387       +2     
==========================================
+ Hits        66633    66658      +25     
+ Misses      75646    75621      -25     
  Partials      190      190              

Flag	Coverage Δ
backend	43.10% <ø> (+0.05%)	⬆️
harness	64.07% <ø> (ø)
web	38.16% <ø> (ø)

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

see 7 files with indirect coverage changes

[tybritten]

LGTM