fix: replacing DefaultHasher

[shashitnak]

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 89.73%. Comparing base (ad2fbad) to head (e52aa8a).

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #1926   +/-   ##
=======================================
  Coverage   89.73%   89.73%           
=======================================
  Files         154      155    +1     
  Lines       15831    15837    +6     
=======================================
+ Hits        14206    14212    +6     
  Misses       1625     1625           

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[github-actions]

Bencher

Report	Mon, May 13, 2024 at 13:49:05 UTC
Project	tailcall
Branch	1926/merge
Testbed	benchmarking-runner

🚨 1 ALERT: Threshold Boundary Limit exceeded!

Benchmark	Measure (units)	View	Value	Lower Boundary	Upper Boundary
input/args.missing	Latency (nanoseconds (ns))	🚨 (view plot | view alert)	28.48 (+13.75%)		27.13 (104.98%)

Click to view all benchmark results

Benchmark	Latency	Latency Results nanoseconds (ns) | (Δ%)	Latency Upper Boundary nanoseconds (ns) | (%)
group_by	✅ (view plot)	589.51 (-2.92%)	632.06 (93.27%)
input/args.missing	🚨 (view plot | view alert)	28.48 (+13.75%)	27.13 (104.98%)
input/args.nested.existing	✅ (view plot)	41.22 (-23.26%)	65.51 (62.92%)
input/args.nested.missing	✅ (view plot)	37.56 (-2.89%)	40.73 (92.22%)
input/args.root	✅ (view plot)	38.84 (-22.85%)	61.69 (62.97%)
input/headers.existing	✅ (view plot)	31.48 (-0.96%)	33.31 (94.51%)
input/headers.missing	✅ (view plot)	30.48 (-0.74%)	32.81 (92.89%)
input/value.missing	✅ (view plot)	23.13 (-1.89%)	25.30 (91.41%)
input/value.nested.existing	✅ (view plot)	42.63 (+2.96%)	43.59 (97.80%)
input/value.nested.missing	✅ (view plot)	37.12 (+2.26%)	38.22 (97.12%)
input/value.root	✅ (view plot)	38.09 (-1.50%)	40.02 (95.17%)
input/vars.existing	✅ (view plot)	7.74 (-6.31%)	9.01 (85.97%)
input/vars.missing	✅ (view plot)	8.10 (-0.16%)	8.89 (91.03%)
test_batched_body	✅ (view plot)	2,675.60 (-99.73%)	2,774,126.77 (0.10%)
test_batched_body #2	✅ (view plot)	1,696,600.00 (-3.77%)	1,893,388.52 (89.61%)
test_data_loader	✅ (view plot)	452,790.00 (-4.35%)	490,747.50 (92.27%)
test_handle_request	✅ (view plot)	169,130.00 (-2.33%)	183,219.17 (92.31%)
with_mustache_expressions	✅ (view plot)	1,189.90 (+1.29%)	1,238.52 (96.07%)
with_mustache_literal	✅ (view plot)	747.55 (+3.35%)	765.27 (97.68%)

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