BIP-32 derivations and master fingerprint; ECDSA and Schnorr signatures on Secp256k1 #131

Job	Run time
Run V-App SDK tests	33s
Run V-App Client SDK tests	54s
vnd-sadik, Build on Risc-V target	25s
vnd-test, Build on Risc-V target	23s
Run common crate tests	23s
Run vnd-test app tests	29s
Run vnd-test app client tests	59s
Build application using the reusable workflow / Retrieve application metadata / Retrieve application metadata	6s
Build application using the reusable workflow / Build application for NanoS, X, S+, and Stax (flex)	3m 20s
Build application using the reusable workflow / Build application for NanoS, X, S+, and Stax (stax)	3m 15s
Build application using the reusable workflow / Build application for NanoS, X, S+, and Stax (nanosp)	3m 0s
Build application using the reusable workflow / Merge build artifacts	3s
vnd-sadik, Integration tests on Speculos (nanosplus)	6m 34s
vnd-sadik, Integration tests on Speculos (flex)	6m 40s
vnd-test, Integration tests on Speculos (nanosplus)	2m 26s
vnd-sadik, Integration tests on Speculos (stax)	6m 51s
vnd-test, Integration tests on Speculos (flex)	2m 13s
vnd-test, Integration tests on Speculos (stax)	2m 19s
	40m 53s

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