Fix rust 1.70 lints

[raskad]

This Pull Request fixes rust 1.70 lints.

[github-actions]

Test262 conformance changes

Test result	main count	PR count	difference
Total	94,118	94,118	0
Passed	74,620	74,620	0
Ignored	17,750	17,750	0
Failed	1,748	1,748	0
Panics	0	0	0
Conformance	79.28%	79.28%	0.00%

[HalidOdat]

Looks good to me! :)

[codecov]

Codecov Report

Merging #2990 (e58b751) into main (5794555) will increase coverage by 0.03%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##             main    #2990      +/-   ##
==========================================
+ Coverage   50.20%   50.23%   +0.03%     
==========================================
  Files         446      446              
  Lines       45988    46000      +12     
==========================================
+ Hits        23089    23109      +20     
+ Misses      22899    22891       -8     

Impacted Files	Coverage Δ
boa_engine/src/bytecompiler/statement/continue.rs	36.84% <ø> (-0.97%)	⬇️
boa_engine/src/string/mod.rs	74.44% <ø> (ø)
boa_engine/src/vm/opcode/rest_parameter/mod.rs	81.81% <100.00%> (ø)

... and 9 files with indirect coverage changes