perf: fix thread contention problem

[laststylebender14]

Summary:
Briefly describe the changes made in this PR.

Issue Reference(s):
Fixes #... (Replace "..." with the issue number)

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 75.71429% with 17 lines in your changes missing coverage. Please review.

Project coverage is 87.22%. Comparing base (2c67ac5) to head (571ae20).

Files with missing lines	Patch %	Lines
src/core/http/request_handler.rs	75.67%	9 Missing ⚠️
src/core/async_graphql_hyper.rs	20.00%	8 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3085      +/-   ##
==========================================
- Coverage   87.22%   87.22%   -0.01%     
==========================================
  Files         280      280              
  Lines       27425    27436      +11     
==========================================
+ Hits        23921    23930       +9     
- Misses       3504     3506       +2     

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[github-actions]

Bencher Report

Branch	3085/merge
Testbed	benchmarking-runner

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Benchmark	Latency	nanoseconds (ns)
from_json_bench	📈 view plot ⚠️ NO THRESHOLD	6,265,100.00
group_by	📈 view plot ⚠️ NO THRESHOLD	505.64
input/args.missing	📈 view plot ⚠️ NO THRESHOLD	22.80
input/args.nested.existing	📈 view plot ⚠️ NO THRESHOLD	42.95
input/args.nested.missing	📈 view plot ⚠️ NO THRESHOLD	38.58
input/args.root	📈 view plot ⚠️ NO THRESHOLD	38.76
input/headers.existing	📈 view plot ⚠️ NO THRESHOLD	32.63
input/headers.missing	📈 view plot ⚠️ NO THRESHOLD	31.54
input/value.missing	📈 view plot ⚠️ NO THRESHOLD	23.46
input/value.nested.existing	📈 view plot ⚠️ NO THRESHOLD	44.44
input/value.nested.missing	📈 view plot ⚠️ NO THRESHOLD	35.83
input/value.root	📈 view plot ⚠️ NO THRESHOLD	37.27
input/vars.existing	📈 view plot ⚠️ NO THRESHOLD	8.42
input/vars.missing	📈 view plot ⚠️ NO THRESHOLD	8.39
synth_nested	📈 view plot ⚠️ NO THRESHOLD	93,395.00
synth_nested_borrow	📈 view plot ⚠️ NO THRESHOLD	41,213.00
test_batched_body	📈 view plot ⚠️ NO THRESHOLD	1,906.40
test_batched_body #2	📈 view plot ⚠️ NO THRESHOLD	1,567,500.00
test_data_loader	📈 view plot ⚠️ NO THRESHOLD	400,720.00
test_handle_request	📈 view plot ⚠️ NO THRESHOLD	130,360.00
test_handle_request_jit	📈 view plot ⚠️ NO THRESHOLD	63,198.00
test_http_execute_method	📈 view plot ⚠️ NO THRESHOLD	14,580.00
with_mustache_expressions	📈 view plot ⚠️ NO THRESHOLD	1,096.00
with_mustache_literal	📈 view plot ⚠️ NO THRESHOLD	709.08

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