refactor: use jit engine to handle REST API

[meskill]

Summary:
Briefly describe the changes made in this PR.

Issue Reference(s):
#3128

Build & Testing:

• I ran cargo test successfully.
• I have run ./lint.sh --mode=fix to fix all linting issues raised by ./lint.sh --mode=check.

Checklist:

• I have added relevant unit & integration tests.
• I have updated the documentation accordingly.
• I have performed a self-review of my code.
• PR follows the naming convention of <type>(<optional scope>): <title>

[codecov]

Codecov Report

Attention: Patch coverage is 96.49123% with 6 lines in your changes missing coverage. Please review.

Project coverage is 86.39%. Comparing base (e3a6026) to head (d0b5ce6).

Files with missing lines	Patch %	Lines
src/core/jit/error.rs	0.00%	3 Missing ⚠️
src/core/rest/partial_request.rs	87.50%	2 Missing ⚠️
src/core/jit/graphql_executor.rs	97.87%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3225      +/-   ##
==========================================
+ Coverage   86.32%   86.39%   +0.06%     
==========================================
  Files         282      282              
  Lines       28798    28825      +27     
==========================================
+ Hits        24860    24903      +43     
+ Misses       3938     3922      -16     

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[github-actions]

Bencher Report

Branch	chore/remove-async-graphql-engine-rest
Testbed	benchmarking-runner

Click to view all benchmark results

Benchmark	Latency	Benchmark Result nanoseconds (ns) (Result Δ%)	Upper Boundary nanoseconds (ns) (Limit %)
from_json_bench	📈 view plot 🚷 view threshold	6,168,800.00 (-0.52%)	6,872,644.27 (89.76%)
group_by	📈 view plot 🚷 view threshold	476.43 (-2.01%)	545.97 (87.26%)
input/args.missing	📈 view plot 🚷 view threshold	22.32 (-7.16%)	29.13 (76.64%)
input/args.nested.existing	📈 view plot 🚷 view threshold	42.78 (-2.61%)	50.14 (85.31%)
input/args.nested.missing	📈 view plot 🚷 view threshold	36.29 (-3.28%)	43.77 (82.90%)
input/args.root	📈 view plot 🚷 view threshold	37.55 (-5.20%)	45.23 (83.01%)
input/headers.existing	📈 view plot 🚷 view threshold	33.04 (+4.49%)	35.44 (93.21%)
input/headers.missing	📈 view plot 🚷 view threshold	31.80 (+3.02%)	35.12 (90.56%)
input/value.missing	📈 view plot 🚷 view threshold	22.16 (-4.31%)	26.03 (85.16%)
input/value.nested.existing	📈 view plot 🚷 view threshold	41.69 (-2.24%)	47.86 (87.09%)
input/value.nested.missing	📈 view plot 🚷 view threshold	35.81 (-0.84%)	41.39 (86.50%)
input/value.root	📈 view plot 🚷 view threshold	37.85 (-3.44%)	44.36 (85.31%)
input/vars.existing	📈 view plot 🚷 view threshold	8.41 (+3.35%)	9.60 (87.57%)
input/vars.missing	📈 view plot 🚷 view threshold	11.25 (+8.14%)	13.51 (83.26%)
synth_nested	📈 view plot 🚷 view threshold	101,440.00 (-16.66%)	158,678.49 (63.93%)
synth_nested_borrow	📈 view plot 🚷 view threshold	37,821.00 (-44.02%)	111,172.02 (34.02%)
test_batched_body	📈 view plot 🚷 view threshold	1,913.80 (+1.24%)	2,087.71 (91.67%)
test_batched_body #2	📈 view plot 🚷 view threshold	1,532,900.00 (+0.94%)	1,677,838.58 (91.36%)
test_data_loader	📈 view plot 🚷 view threshold	395,870.00 (-0.45%)	430,689.32 (91.92%)
test_handle_request	📈 view plot 🚷 view threshold	55,995.00 (-56.50%)	153,701.77 (36.43%)
test_handle_request_jit	📈 view plot 🚷 view threshold	56,505.00 (-38.35%)	153,670.65 (36.77%)
test_http_execute_method	📈 view plot 🚷 view threshold	14,971.00 (+3.23%)	16,218.00 (92.31%)
with_mustache_expressions	📈 view plot 🚷 view threshold	1,028.30 (-6.34%)	1,256.83 (81.82%)
with_mustache_literal	📈 view plot 🚷 view threshold	636.81 (-9.02%)	811.20 (78.50%)

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