Fix ambiguous lifetime elision #364

Job	Run time
Audit	10s
cargo fmt	11s
Build with no-std on wasm32-unknown-unknown	15s
cargo clippy	32s
Build with no-std on wasm32-unknown-unknown	30s
Taplo	4s
Build with no-std on wasm32-unknown-unknown	17s
test (--features ristretto255-ciphersuite, stable)	1m 1s
Build with no-std on wasm32-unknown-unknown	24s
test (--features ristretto255-ciphersuite, 1.65.0)	2m 58s
Build with no-std on wasm32-unknown-unknown	14s
test (--features ristretto255-ciphersuite, --features danger, stable)	1m 34s
Build with no-std on wasm32-unknown-unknown	19s
test (--features ristretto255-ciphersuite, --features danger, 1.65.0)	3m 36s
test (--features ristretto255-ciphersuite, --features serde, stable)	1m 32s
Build with no-std on thumbv6m-none-eabi	12s
Build with no-std on thumbv6m-none-eabi	12s
test (--features ristretto255-ciphersuite, --features serde, 1.65.0)	3m 42s
test (stable)	58s
test (1.65.0)	3m 0s
Build with no-std on thumbv6m-none-eabi	19s
Build with no-std on thumbv6m-none-eabi	17s
test (--features danger, stable)	1m 26s
Build with no-std on thumbv6m-none-eabi	13s
test (--features danger, 1.65.0)	3m 32s
Build with no-std on thumbv6m-none-eabi	17s
test (--features serde, stable)	1m 23s
test (--features serde, 1.65.0)	3m 29s
	32m 37s

Provide feedback