StrongBox reliability uncertainty

[luckyrat]

I have no concrete data on this but while debugging something that was probably unrelated in the end, I found a number of concerning discussions relating to the reliability of the Android StrongBox feature.

wultra/powerauth-mobile-sdk#354

beemdevelopment/Aegis#87

juliansteenbakker/flutter_secure_storage#225

https://github.com/forcedotcom/SalesforceMobileSDK-Android/blob/dev/libs/SalesforceSDK/src/com/salesforce/androidsdk/security/KeyStoreWrapper.java#L231

On my Kee Vault branch I have temporarily rolled back the enabling of this feature since I don't currently have the time or sufficient Android devices to test it thoroughly enough while I'm focussed on other more urgent fixes and enhancements.

Just thought I should mention this here in case anyone else is using the unreleased main branch at the moment (and since the strongbox change isn't mentioned in the pre-release changelog yet).