Merge pull request #425 from LedgerHQ/fix_unitialized_nb_bitmap_char #1405

Job	Run time
Code coverage	6m 22s
Clone, build, test	4m 10s
Linter on C code	20s
Check misspellings	12s
Build and test the Speculos docker / Build Speculos Docker image	3m 41s
Build and test the Speculos docker / Build application using the reusable workflow / Check if app is based on Rust / Check if app is based on Rust	6s
Build and test the Speculos docker / Build application using the reusable workflow / Build application for NanoS, X, S+, and Stax (nanos)	41s
Build and test the Speculos docker / Build application using the reusable workflow / Build application for NanoS, X, S+, and Stax (nanox)	53s
Build and test the Speculos docker / Build application using the reusable workflow / Build application for NanoS, X, S+, and Stax (nanosp)	42s
Build and test the Speculos docker / Build application using the reusable workflow / Build application for NanoS, X, S+, and Stax (stax)	40s
Build and test the Speculos docker / Functional tests with Ragger (nanos)	1m 19s
Build and test the Speculos docker / Functional tests with Ragger (nanox)	1m 28s
Build and test the Speculos docker / Functional tests with Ragger (nanosp)	1m 28s
Build and test the Speculos docker / Functional tests with Ragger (stax)	3m 2s
Build and Upload the Speculos docker	1m 58s
Build and deploy Speculos Python Package	3m 13s
	30m 15s

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