chore: bump @aws/language-server-runtimes to 0.3.15

[chungjac]

Regenerate lockfile to pick up LSR 0.3.15 to address CVE-2026-22036 and CVE-2021-3807

LSR 0.3.15: https://www.npmjs.com/package/@aws/language-server-runtimes/v/0.3.15

• fix(runtimes): replace mac-ca with native macOS certificate reading language-server-runtimes#736
• fix(runtimes): replace registry-js with native reg query to remove vu… language-server-runtimes#737

[chungjac]

.ts file changes are just prettier formatting fixes required in order to pass CI, unrelated to the lockfile bump.

[codecov-commenter]

Codecov Report

❌ Patch coverage is 4.25532% with 45 lines in your changes missing coverage. Please review.
✅ Project coverage is 60.21%. Comparing base (8b35d52) to head (5eaa982).
⚠️ Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
chat-client/src/contracts/chatClientAdapter.ts	0.00%	43 Missing ⚠️
...ared/amazonQServiceManager/atxTransformProfiles.ts	0.00%	2 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #2649   +/-   ##
=======================================
  Coverage   60.21%   60.21%           
=======================================
  Files         279      279           
  Lines       65975    65972    -3     
  Branches     4164     4164           
=======================================
- Hits        39726    39725    -1     
+ Misses      26167    26165    -2     
  Partials       82       82           

Flag	Coverage Δ
unittests	60.21% <4.25%> (+<0.01%)	⬆️

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