Bump rust-version to 1.71

[jedel1043]

Just to ensure our repo correctly reports our MSRV for users that want to use the main branch.

[github-actions]

Test262 conformance changes

Test result	main count	PR count	difference
Total	95,574	95,574	0
Passed	75,084	75,084	0
Ignored	19,494	19,494	0
Failed	996	996	0
Panics	0	0	0
Conformance	78.56%	78.56%	0.00%

[codecov]

Codecov Report

Patch coverage: 50.00% and no project coverage change.

Comparison is base (8a78061) 50.31% compared to head (cca79fb) 50.31%.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #3290   +/-   ##
=======================================
  Coverage   50.31%   50.31%           
=======================================
  Files         436      436           
  Lines       42604    42604           
=======================================
  Hits        21438    21438           
  Misses      21166    21166           

Files Changed	Coverage Δ
boa_engine/src/vm/opcode/mod.rs	7.03% <0.00%> (ø)
boa_engine/src/vm/code_block.rs	52.45% <100.00%> (ø)

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

[nekevss]

LGTM.

thought: Would it be worthwhile adding an MSRV test to our CI as well? I feel like we typically keep pretty close to current, but it could be useful to keep track of when we should increase the version.

[jedel1043]

Would it be worthwhile adding an MSRV test to our CI as well?

I think #3173 does this, but we haven't got the time to review + merge it. Noope 😅

[nekevss]

Hmmm, I think that's focused more on semver vs. msrv, right?

As an example, I think chrono uses dtolnay/rust-toolchain to run cargo test on a specified version to ensure a PR also compiles and runs on that version.

[jedel1043]

Hmmm, I think that's focused more on semver vs. msrv, right?

Yeah, ignore that 😅 I was thinking that the msrv influenced semver, but I think those are orthogonal concepts.

[HalidOdat]

Looks good to me! :)