Add secret for analytics URL and token

[sgayangi]

Purpose

Fixes #2265

Sample values.yaml configuration for Choreo analytics:

      gatewayRuntime:
        analytics:
          enabled: true
          publishers:
            - enabled: true
              type: "default"
              secretName: "default-analytics-secret"
            - enabled: true
              type: "moesif"
              secretName: "moesif-secret"

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 27.76%. Comparing base (4413d98) to head (dd80a33).
Report is 36 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2303      +/-   ##
==========================================
+ Coverage   25.75%   27.76%   +2.01%     
==========================================
  Files         115      124       +9     
  Lines       14366    14917     +551     
  Branches     2450     2696     +246     
==========================================
+ Hits         3700     4142     +442     
- Misses      10529    10638     +109     
  Partials      137      137              

Flag	Coverage Δ
adapter	27.34% <ø> (ø)
common-controller	4.07% <ø> (ø)
config-deployer-service	26.03% <ø> (ø)
idp-domain-service	80.21% <ø> (?)

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