fix body parser code for engine webhook

[Yash094]

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PR-Codex overview

This PR focuses on updating the webhook handling in the application by changing the request body parsing method from text to JSON.

Detailed summary

• Changed bodyParser.text() to bodyParser.json() for parsing incoming requests.
• This change likely improves the handling of JSON payloads sent to the "/webhook" endpoint.

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 42.12%. Comparing base (c5dfad8) to head (8f0a128).

❗ There is a different number of reports uploaded between BASE (c5dfad8) and HEAD (8f0a128). Click for more details.

HEAD has 1 upload less than BASE

Flag	BASE (c5dfad8)	HEAD (8f0a128)
packages	2	1

Additional details and impacted files

@@             Coverage Diff             @@
##             main    #6197       +/-   ##
===========================================
- Coverage   56.77%   42.12%   -14.65%     
===========================================
  Files        1161     1159        -2     
  Lines       64259    64146      -113     
  Branches     5197     3815     -1382     
===========================================
- Hits        36483    27023     -9460     
- Misses      27049    36422     +9373     
+ Partials      727      701       -26     

Flag	Coverage Δ		*Carryforward flag
legacy_packages	65.68% <ø> (ø)		Carriedforward from c5dfad8
packages	37.31% <ø> (-17.65%)	⬇️

*This pull request uses carry forward flags. Click here to find out more.

see 265 files with indirect coverage changes