improvement: bump parking_lot dependency to 0.10

[Wodann]

This improvement reduces the number of dependencies, by using the same parking_lot minor version across the board.

[codecov]

Codecov Report

Merging #103 into master will not change coverage by %.
The diff coverage is 100.00%.

@@           Coverage Diff           @@
##           master     #103   +/-   ##
=======================================
  Coverage   77.78%   77.78%           
=======================================
  Files         134      134           
  Lines        8806     8806           
=======================================
  Hits         6850     6850           
  Misses       1956     1956           

Impacted Files	Coverage Δ
crates/mun_hir/src/mock.rs	100.00% <100.00%> (ø)

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