build(deps): update thiserror requirement from 1.0.29 to 2.0.0 #1366

Job	Run time
build with MSRV (1.66.1)	2m 22s
Clippy	37s
build with no_std (ristretto255)	25s
test on beta	2m 1s
build with no_std (ed25519)	25s
build with no_std (p256)	28s
actionlint	7s
Check Rust doc	34s
build with no_std (secp256k1)	32s
Rustfmt	23s
build with no_std (rerandomized)	23s
Check if automatically generated code is up to date	36s
build with default features	28s
	9m 21s

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