Add an example of Blind-sign flow for Stax/Flex #492

Job	Run time
Call Ledger guidelines_enforcer / Retrieve application metadata / Retrieve application metadata	7s
Call Ledger guidelines_enforcer / Get workflow version / Get workflow version	3s
Call Ledger guidelines_enforcer / Dispatch check / Check readme	4s
Call Ledger guidelines_enforcer / Dispatch check	0s
Call Ledger guidelines_enforcer / Dump app information / Get application manifest for supported devices (flex)	1m 14s
Call Ledger guidelines_enforcer / Dump app information / Get application manifest for supported devices (nanox)	1m 14s
Call Ledger guidelines_enforcer / Dispatch check / Clang Static Analyzer (flex)	1m 46s
Call Ledger guidelines_enforcer / Dump app information / Get application manifest for supported devices (stax)	1m 5s
Call Ledger guidelines_enforcer / Dispatch check / Clang Static Analyzer (nanox)	1m 20s
Call Ledger guidelines_enforcer / Dump app information / Get application manifest for supported devices (nanosp)	1m 13s
Call Ledger guidelines_enforcer / Dispatch check / Clang Static Analyzer (stax)	1m 46s
Call Ledger guidelines_enforcer / Dispatch check / Clang Static Analyzer (nanosp)	1m 16s
Call Ledger guidelines_enforcer / Dump app information / Merge build artifacts	5s
Call Ledger guidelines_enforcer / Dispatch check / Check icons	6s
Call Ledger guidelines_enforcer / Dispatch check / Check APP_LOAD_PARAMS	4s
Call Ledger guidelines_enforcer / Dispatch check / Check Makefile	8s
	11m 31s

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