Bump serde to use syn 2.0

[fee1-dead]

cc #109302

[rustbot]

r? @Mark-Simulacrum

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[rustbot]

These commits modify the Cargo.lock file. Random changes to Cargo.lock can be introduced when switching branches and rebasing PRs.
This was probably unintentional and should be reverted before this PR is merged.

If this was intentional then you can ignore this comment.

[Mark-Simulacrum]

@bors r+

[bors]

📌 Commit 3b187c3 has been approved by Mark-Simulacrum

It is now in the queue for this repository.

[bors]

⌛ Testing commit 3b187c3 with merge 2a198c7...

[bors]

☀️ Test successful - checks-actions
Approved by: Mark-Simulacrum
Pushing 2a198c7 to master...

[rust-timer]

Finished benchmarking commit (2a198c7): comparison URL.

Overall result: no relevant changes - no action needed

@rustbot label: -perf-regression

Instruction count

This benchmark run did not return any relevant results for this metric.

Max RSS (memory usage)

Results

This is a less reliable metric that may be of interest but was not used to determine the overall result at the top of this comment.

	mean	range	count
Regressions ❌ (primary)	0.9%	[0.4%, 1.8%]	4
Regressions ❌ (secondary)	1.9%	[1.2%, 2.6%]	2
Improvements ✅ (primary)	-1.1%	[-1.3%, -0.9%]	2
Improvements ✅ (secondary)	-2.2%	[-2.2%, -2.2%]	1
All ❌✅ (primary)	0.2%	[-1.3%, 1.8%]	6

Cycles

Results

This is a less reliable metric that may be of interest but was not used to determine the overall result at the top of this comment.

	mean	range	count
Regressions ❌ (primary)	-	-	0
Regressions ❌ (secondary)	-	-	0
Improvements ✅ (primary)	-0.4%	[-0.4%, -0.4%]	1
Improvements ✅ (secondary)	-	-	0
All ❌✅ (primary)	-0.4%	[-0.4%, -0.4%]	1