change to use parking_lot::RwLock for better performance

[JoshuaBatty]

Description

Switching from std::sync::RwLock to parking_lot::RwLock is giving us a 10% further performance increase.

before: 13.459551958s
after: 12.125325542s

Checklist

• I have linked to any relevant issues.
• I have commented my code, particularly in hard-to-understand areas.
• I have updated the documentation where relevant (API docs, the reference, and the Sway book).
  • If my change requires substantial documentation changes, I have requested support from the DevRel team
• I have added tests that prove my fix is effective or that my feature works.
• I have added (or requested a maintainer to add) the necessary Breaking* or New Feature labels where relevant.
• I have done my best to ensure that my PR adheres to the Fuel Labs Code Review Standards.
• I have requested a review from the relevant team or maintainers.

[github-actions]

Benchmark for 94c6962

Click to view benchmark

Test	Base	PR	%
code_action	5.2±0.08ms	5.4±0.05ms	+3.85%
code_lens	297.0±9.45ns	333.1±6.07ns	+12.15%
compile	3.0±0.05s	3.0±0.03s	0.00%
completion	4.6±0.07ms	4.7±0.08ms	+2.17%
did_change_with_caching	2.9±0.05s	2.9±0.03s	0.00%
document_symbol	943.6±11.91µs	980.7±23.20µs	+3.93%
format	71.4±1.01ms	77.0±1.09ms	+7.84%
goto_definition	372.8±5.51µs	365.6±5.41µs	-1.93%
highlight	8.8±0.02ms	9.0±0.12ms	+2.27%
hover	489.9±5.09µs	483.0±5.99µs	-1.41%
idents_at_position	124.1±0.79µs	122.8±0.65µs	-1.05%
inlay_hints	651.9±15.19µs	666.6±25.23µs	+2.25%
on_enter	478.6±7.85ns	517.3±12.68ns	+8.09%
parent_decl_at_position	3.6±0.02ms	3.7±0.02ms	+2.78%
prepare_rename	371.6±4.24µs	368.4±11.49µs	-0.86%
rename	9.3±0.11ms	9.6±0.03ms	+3.23%
semantic_tokens	1053.9±22.55µs	1084.4±30.60µs	+2.89%
token_at_position	365.3±2.38µs	357.7±1.95µs	-2.08%
tokens_at_position	3.6±0.04ms	3.7±0.03ms	+2.78%
tokens_for_file	437.7±2.92µs	434.8±2.38µs	-0.66%
traverse	41.6±0.59ms	42.1±0.66ms	+1.20%

[github-actions]

Benchmark for 5de14b0

Click to view benchmark

Test	Base	PR	%
code_action	5.2±0.06ms	5.3±0.02ms	+1.92%
code_lens	295.5±9.20ns	333.5±8.27ns	+12.86%
compile	2.9±0.03s	2.9±0.04s	0.00%
completion	4.6±0.19ms	4.7±0.07ms	+2.17%
did_change_with_caching	2.8±0.03s	2.8±0.05s	0.00%
document_symbol	945.4±41.23µs	983.4±41.76µs	+4.02%
format	70.8±0.93ms	76.8±3.51ms	+8.47%
goto_definition	368.5±5.38µs	360.6±5.70µs	-2.14%
highlight	8.9±0.16ms	9.0±0.12ms	+1.12%
hover	489.5±17.00µs	479.6±4.83µs	-2.02%
idents_at_position	122.3±0.26µs	122.5±1.20µs	+0.16%
inlay_hints	659.8±16.80µs	665.2±23.04µs	+0.82%
on_enter	482.1±7.82ns	489.8±13.22ns	+1.60%
parent_decl_at_position	3.6±0.04ms	3.7±0.07ms	+2.78%
prepare_rename	370.5±12.25µs	365.0±15.06µs	-1.48%
rename	9.4±0.07ms	9.6±0.13ms	+2.13%
semantic_tokens	1019.6±13.60µs	1060.3±9.52µs	+3.99%
token_at_position	370.7±3.20µs	356.4±2.43µs	-3.86%
tokens_at_position	3.6±0.03ms	3.7±0.03ms	+2.78%
tokens_for_file	430.9±2.49µs	434.5±7.81µs	+0.84%
traverse	40.4±1.39ms	41.3±1.01ms	+2.23%