Enable the signing logic to fall back to the hardware wallet if secret key is not found. #776

Job	Run time
build-wasm (wasm, build-wasm-scripts, wasm/tx_.wasm wasm/vp_.wasm wasm/checksums.json )	4m 37s
build-wasm (wasm, build-wasm-scripts, wasm/tx_.wasm wasm/vp_.wasm wasm/checksums.json )	4m 37s
build-wasm (wasm, build-wasm-scripts, wasm/tx_.wasm wasm/vp_.wasm wasm/checksums.json )	4m 37s
rust-docs	7m 29s
rust-docs	7m 29s
rust-docs	7m 29s
build-wasm (wasm-for-tests, build-wasm-tests-scripts, wasm_for_tests/*.wasm)	3m 50s
build-wasm (wasm-for-tests, build-wasm-tests-scripts, wasm_for_tests/*.wasm)	3m 50s
build-wasm (wasm-for-tests, build-wasm-tests-scripts, wasm_for_tests/*.wasm)	3m 50s
lints	5m 36s
lints	5m 36s
lints	5m 36s
check-packages	5m 54s
check-packages	5m 54s
check-packages	5m 54s
build-binaries	10m 53s
build-binaries	10m 53s
build-binaries	10m 53s
changelog	16s
changelog	16s
changelog	16s
test-wasm	7m 24s
test-wasm	7m 24s
test-wasm	7m 24s
test-unit	10m 24s
test-unit	10m 24s
test-unit	10m 24s
check-benchmarks	10m 14s
check-benchmarks	10m 14s
check-benchmarks	10m 14s
test-integration	15m 26s
test-integration	15m 26s
test-integration	15m 26s
test-e2e (0)	22m 32s
test-e2e (0)	22m 32s
test-e2e (0)	22m 32s
test-e2e (1)	18m 4s
test-e2e (1)	18m 4s
test-e2e (1)	18m 4s
test-e2e (2)	22m 50s
test-e2e (2)	22m 11s
test-e2e (2)	21m 37s
test-e2e (3)	17m 51s
test-e2e (3)	17m 51s
test-e2e (3)	17m 51s
test-e2e (4)	18m 2s
test-e2e (4)	18m 2s
test-e2e (4)	18m 2s
upload-coverage	14s
upload-coverage	14s
upload-coverage	14s
	9h 2m 56s

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