Fix Escape Character Issues for Patch Branch

[ThisaruGuruge]

Purpose

Fixes: #3067
Fixes: #3069

These are already been fixed in the master, this is for the patch release.

Examples

Checklist

• Linked to an issue
• Updated the changelog
• Added tests
• Updated the spec

[codecov]

Codecov Report

Merging #826 (5235b9a) into 2201.1.x (a745da7) will not change coverage.
The diff coverage is n/a.

@@            Coverage Diff            @@
##           2201.1.x     #826   +/-   ##
=========================================
  Coverage     89.36%   89.36%           
=========================================
  Files            55       55           
  Lines          3941     3941           
  Branches       2122     2122           
=========================================
  Hits           3522     3522           
  Misses          388      388           
  Partials         31       31           

Impacted Files	Coverage Δ
ballerina/response_formatter.bal	96.09% <0.00%> (-0.76%)	⬇️
ballerina/websocket_service.bal	100.00% <0.00%> (+2.08%)	⬆️

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