perf: improve TernarySearchTree

[Uzlopak]

before:

aras@aras-Lenovo-Legion-5-17ARH05H:~/workspace/undici$ node benchmarks/TernarySearchTree.mjs 
cpu: AMD Ryzen 7 4800H with Radeon Graphics
runtime: node v21.6.2 (x64-linux)

benchmark           time (avg)             (min … max)       p75       p99      p999
------------------------------------------------------ -----------------------------
• tree.search
------------------------------------------------------ -----------------------------
content-length  35'297 ps/iter    (33'693 ps … 337 ns) 34'613 ps 40'718 ps    109 ns
CONTENT-LENGTH  35'353 ps/iter    (34'034 ps … 368 ns) 34'954 ps 40'991 ps 82'356 ps
Content-Length  34'016 ps/iter (32'977 ps … 71'478 ps) 33'795 ps 39'354 ps 60'906 ps

summary for tree.search
  Content-Length
   1.04x faster than content-length
   1.04x faster than CONTENT-LENGTH

after:

aras@aras-Lenovo-Legion-5-17ARH05H:~/workspace/undici$ node benchmarks/TernarySearchTree.mjs 
cpu: AMD Ryzen 7 4800H with Radeon Graphics
runtime: node v21.6.2 (x64-linux)

benchmark           time (avg)             (min … max)       p75       p99      p999
------------------------------------------------------ -----------------------------
• tree.search
------------------------------------------------------ -----------------------------
content-length  32'567 ps/iter    (30'964 ps … 379 ns) 31'919 ps 37'205 ps 93'200 ps
CONTENT-LENGTH  35'016 ps/iter    (33'761 ps … 174 ns) 34'716 ps 39'183 ps 89'211 ps
Content-Length  32'719 ps/iter (31'578 ps … 77'070 ps) 32'499 ps 36'625 ps 64'691 ps

summary for tree.search
  content-length
   1x faster than Content-Length
   1.08x faster than CONTENT-LENGTH

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (e39a632) 85.54% compared to head (5ca863c) 85.40%.
Report is 319 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2782      +/-   ##
==========================================
- Coverage   85.54%   85.40%   -0.15%     
==========================================
  Files          76       85       +9     
  Lines        6858     7605     +747     
==========================================
+ Hits         5867     6495     +628     
- Misses        991     1110     +119     

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