test determinism for evm tokens analyzer

[pro-wh]

It's particularly nice for debugging, run comparisons, test writing etc, if the sql statements are ordered deterministically.
Maybe you can sort staleTokens before this for loop? Or probably even better, make getStaleTokens() return ordered results by adding an ORDER BY token_address to the underlying db query.

Originally posted by @mitjat in #344 (comment)

[pro-wh]

currently the "stale" tokens are maintained in an index so they're probably ordered by runtime, token_address. might as well make this explicit. if this later causes tokens at higher addresses to starve, we'll have to come up with something else.