enhance test cases for script execution

[OutOfBedlam]

This pull request includes changes to improve the handling of JSON decoding in gojaFuncRequest and adds several new test cases to fm_script_test.go.

Improvements to JSON decoding:

• mods/tql/fm_script_es6.go: Updated JSON decoding to use a map instead of a generic any type for better type safety.

Additions to test cases:

• mods/tql/fm_script_test.go: Added a new test case js-payload-csv to validate the processing of CSV payloads.
• mods/tql/fm_script_test.go: Added a new test case js-compile-err to check for JavaScript compilation errors.
• mods/tql/fm_script_test.go: Added a new test case js-params to test the handling of script parameters.
• mods/tql/fm_script_test.go: Added a new test case js-request to test HTTP requests within scripts.
• mods/tql/fm_script_test.go: Added a new test case js-request-json to validate JSON responses from HTTP requests.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 41.38%. Comparing base (c3f0bfe) to head (7bcbbb4).
Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #303      +/-   ##
==========================================
+ Coverage   41.25%   41.38%   +0.12%     
==========================================
  Files         262      262              
  Lines       57952    57952              
==========================================
+ Hits        23910    23984      +74     
+ Misses      31667    31577      -90     
- Partials     2375     2391      +16     

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