Consider dev-keys for MASTG-DEMO-0087

[cpholguera]

        val isTestKeys = Build.TAGS?.let { tags -> listOf("test-keys", "dev-keys").any(tags::contains) } == true

We should also cover dev-keys, which is commonly used for rooted emulators. There are many occurrences of test-keys in this PR. Would be great to add dev-keys next to it or rephrase it to make it more general.

Originally posted by @serek8 in #3604 (comment)