perf: add dedupe benchmark

[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

All modified and coverable lines are covered by tests ✅

Project coverage is 87.20%. Comparing base (a889fd8) to head (851de40).

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #3071   +/-   ##
=======================================
  Coverage   87.19%   87.20%           
=======================================
  Files         277      277           
  Lines       27473    27473           
=======================================
+ Hits        23956    23957    +1     
+ Misses       3517     3516    -1     

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[github-actions]

Bencher Report

Branch	3071/merge
Testbed	benchmarking-runner

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• Latency

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Benchmark	Latency	nanoseconds (ns)
dedupe concurrent access with thread pool	📈 view plot ⚠️ NO THRESHOLD	2,057,800.00
from_json_bench	📈 view plot ⚠️ NO THRESHOLD	6,334,100.00
group_by	📈 view plot ⚠️ NO THRESHOLD	481.86
input/args.missing	📈 view plot ⚠️ NO THRESHOLD	22.22
input/args.nested.existing	📈 view plot ⚠️ NO THRESHOLD	41.59
input/args.nested.missing	📈 view plot ⚠️ NO THRESHOLD	37.36
input/args.root	📈 view plot ⚠️ NO THRESHOLD	37.94
input/headers.existing	📈 view plot ⚠️ NO THRESHOLD	32.92
input/headers.missing	📈 view plot ⚠️ NO THRESHOLD	32.60
input/value.missing	📈 view plot ⚠️ NO THRESHOLD	22.36
input/value.nested.existing	📈 view plot ⚠️ NO THRESHOLD	42.55
input/value.nested.missing	📈 view plot ⚠️ NO THRESHOLD	35.89
input/value.root	📈 view plot ⚠️ NO THRESHOLD	42.21
input/vars.existing	📈 view plot ⚠️ NO THRESHOLD	8.42
input/vars.missing	📈 view plot ⚠️ NO THRESHOLD	10.88
synth_nested	📈 view plot ⚠️ NO THRESHOLD	94,569.00
synth_nested_borrow	📈 view plot ⚠️ NO THRESHOLD	40,906.00
test_batched_body	📈 view plot ⚠️ NO THRESHOLD	1,875.30
test_batched_body #2	📈 view plot ⚠️ NO THRESHOLD	1,518,700.00
test_data_loader	📈 view plot ⚠️ NO THRESHOLD	390,300.00
test_handle_request	📈 view plot ⚠️ NO THRESHOLD	12,479,000.00
test_handle_request_jit	📈 view plot ⚠️ NO THRESHOLD	12,499,000.00
test_http_execute_method	📈 view plot ⚠️ NO THRESHOLD	15,183.00
with_mustache_expressions	📈 view plot ⚠️ NO THRESHOLD	1,081.00
with_mustache_literal	📈 view plot ⚠️ NO THRESHOLD	692.79

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[github-actions]

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