uplift(beta): feat disable memtag for beta and release

[wmontwe]

Uplift #10280

[thunderbird-botmobile]

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[Approval Request]
Original Issue/Pull request: #10279
Regression caused by (issue #): #10164
User impact if declined: App will crash on all Pixel 10 devices
Testing completed (on daily, beta, etc.): debug, beta
Introduces or modifies localizable strings (yes/no): no
Skips a database migration (yes/no): no
Risk to taking this patch (and alternatives if risky): Disabling the memory check will not surface crashes by force as with the flag enabled.