To work around this issue when subscriptions are
inactive for more than 5 minutes:
NomicFoundation/hardhat#2053

Use 100 millisecond polling; default polling interval
of 4 seconds is too close to the 5 second timeout for
`check eventually`.

confirm(0) doesn't wait at all, confirm(1) waits
for the transaction to be mined

includes fixes for http polling and .confirm()

allow for a bit more time to withdraw funds

to ensure that the transaction has been processed
before continuing with the test

there were two logic errors in this test:
- a slot is freed anyway at the end of the contract
- when starting the request takes a long time, the
  first slot can already be freed because there were
  too many missing proofs

currentTime() doesn't always correctly reflect
the time of the next transaction

otherwise the windows runner in the CI won't
be able to start the request before it expires

allow for a bit more time for a request to
be submitted

windows ci is so slow, it can take up to 40 seconds
just to submit a storage request to hardhat

reason: with the increased period length of 90 seconds, it
can take longer to wait for a stable challenge at the
beginning of a period.

apparently it takes windows 2-3 seconds to
resolve "localhost" to 127.0.0.1 for every
json-rpc connection that we make 🤦