Bump syn from 2.0.95 to 2.0.96 #829

Job	Run time
Examples	7m 58s
Build binaries	3m 41s
CLI	4m 47s
Test (ubuntu-latest)	3m 55s
Test (runs-on, runner=8cpu-linux-arm64, run-id=12767065304)	4m 50s
Test (macos-latest)	3m 54s
Formatting & Clippy	56s
Test (Go) (ubuntu-latest)	1m 25s
Test (Go) (runs-on, runner=8cpu-linux-arm64, run-id=12767065304)	1m 0s
Test (Go) (macos-latest)	1m 44s
Test (Go) (windows-latest)	3m 27s
	37m 37s

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