feat(translator): use SDS to deliver system trust store to support dynamic reload

[guydc]

What type of PR is this?

What this PR does / why we need it:

• use SDS to deliver system trust store to support dynamic reload
• Add e2e test

Which issue(s) this PR fixes:

Fixes #5074

Release Notes: Yes

[codecov]

Codecov Report

Attention: Patch coverage is 94.59459% with 2 lines in your changes missing coverage. Please review.

Project coverage is 66.92%. Comparing base (7813ef0) to head (3ecc185).

Files with missing lines	Patch %	Lines
internal/xds/translator/translator.go	94.11%	1 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #5084      +/-   ##
==========================================
- Coverage   66.93%   66.92%   -0.02%     
==========================================
  Files         210      210              
  Lines       32984    32968      -16     
==========================================
- Hits        22079    22064      -15     
- Misses       9570     9572       +2     
+ Partials     1335     1332       -3     

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[arkodg]

LGTM thanks !
would be good to optimize this in the future to have 1 system secret rather than 1 per policy

[guydc]

cc @arkodg
changed milestone to RC, as this is a behavior change and not a bug fix.