[Merged by Bors] - Bump bitflags to 2.0.0

[Razican]

Updated bitflags, overrides #2665.

[github-actions]

Test262 conformance changes

Test result	main count	PR count	difference
Total	94,277	94,277	0
Passed	71,992	71,992	0
Ignored	17,324	17,324	0
Failed	4,961	4,961	0
Panics	12	12	0
Conformance	76.36%	76.36%	0.00%

[codecov]

Codecov Report

Merging #2666 (cdda67a) into main (c9d21ac) will increase coverage by 0.20%.
The diff coverage is 50.00%.

@@            Coverage Diff             @@
##             main    #2666      +/-   ##
==========================================
+ Coverage   49.27%   49.48%   +0.20%     
==========================================
  Files         390      386       -4     
  Lines       39484    39403      -81     
==========================================
+ Hits        19455    19497      +42     
+ Misses      20029    19906     -123     

Impacted Files	Coverage Δ
boa_engine/src/bytecompiler/jump_control.rs	93.33% <0.00%> (-6.08%)	⬇️
boa_tester/src/main.rs	0.00% <0.00%> (ø)
boa_engine/src/property/attribute/mod.rs	70.96% <50.00%> (-29.04%)	⬇️
boa_ast/src/function/parameters.rs	82.41% <100.00%> (-6.74%)	⬇️
boa_parser/src/lexer/regex.rs	59.64% <100.00%> (-5.12%)	⬇️

... and 13 files with indirect coverage changes

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[HalidOdat]

bors r+

[bors]

Pull request successfully merged into main.

Build succeeded:

• Build and Test (macos-latest)
• Build and Test (windows-latest)
• Coverage
• Misc