Support adding header to wasm http request containing runtime token

[ianthomas23]

Support adding header to wasm http request containing runtime token.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 88.52%. Comparing base (17279da) to head (bea1fcf).

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #153      +/-   ##
==========================================
- Coverage   88.55%   88.52%   -0.04%     
==========================================
  Files          62       62              
  Lines        2884     2884              
  Branches      358      358              
==========================================
- Hits         2554     2553       -1     
- Misses        330      331       +1     

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