test(eap): Query typed-colon attribute as boolean instead of number

[phacops]

Summary

• test_typed_attributes_with_colons stored a boolean and queried it as a ,number], which only worked because the eap-items consumer double-wrote booleans into the float columns
• Snuba is removing that double-write in ref(eap-items): Stop double writing booleans into float columns snuba#7689, breaking the assertion in Snuba CI
• Query the same attribute with its real ,boolean] type so the colon-in-key check is exercised against the column the value actually lives in

Test plan

• CI on this branch

Refs getsentry/snuba#7689

[cursor]

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