fix: issue where empty results were not returned properly from make_request()

[antazoey]

What I did

fixes: ApeWorX/ape#2456
fixes: ApeWorX/ape#2452

cursed walrus operator pwned us

How I did it

return emptiness when be it

How to verify it

demo that the user's reported issue is fixed:

ape console --network blast:mainnet:alchemy

In [1]: transfers = Contract("0xb1a5700fa2358173fe465e6ea4ff52e36e88e2ad").Transfer.range(0, chain.blocks[-1].number)

In [2]: list(transfers)

note: it does not fail anymore but the quest is so big that I am not going to actually wait for it to finish (searching entire blast chain for events?!) but before it failed right away and now it chugs along so we should be gucci

Checklist

• Passes all linting checks (pre-commit and CI jobs)
• New test cases have been added and are passing
• Documentation has been updated
• PR title follows Conventional Commit standard (will be automatically included in the changelog)