Update UI Test CI.

[brandonpage]

This PR will:

• Fix the current build issues on PR and Nightly
• Ensures only the new AuthFlowTester tests run.
• A single UI test, today called testLogin, runs on PR. All UI tests (coming soon) will run on nightly.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 62.60%. Comparing base (7c821ad) to head (7502310).
⚠️ Report is 3 commits behind head on dev.

Additional details and impacted files

@@             Coverage Diff              @@
##                dev    #2830      +/-   ##
============================================
- Coverage     62.64%   62.60%   -0.04%     
+ Complexity     2809     2803       -6     
============================================
  Files           216      216              
  Lines         16997    16980      -17     
  Branches       2414     2417       +3     
============================================
- Hits          10647    10631      -16     
+ Misses         5188     5187       -1     
  Partials       1162     1162              

Components	Coverage Δ
Analytics	47.92% <ø> (ø)
SalesforceSDK	56.33% <100.00%> (-0.08%)	⬇️
Hybrid	59.05% <ø> (ø)
SmartStore	78.20% <ø> (ø)
MobileSync	81.68% <ø> (ø)
React	37.36% <ø> (ø)
see 1 file with indirect coverage changes

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.
• 📦 JS Bundle Analysis: Save yourself from yourself by tracking and limiting bundle sizes in JS merges.