fix: fixing scheduled tests

[KolevDarko]

Fixing the failing nightly tests, located in integration-tests/test/scheduled

• Adding feeAddress and feeAmount to Erc20FeeProxy requests because they are mandatory.
• Increased the timeout to some of the tests because I was getting timeout errors, perhaps because it's local environment.
• Had to change the network from private to rinkeby for the Eth input data tests. I was getting errors saying network private not supported for this payment detection because we're using chain explorer for the detection I believe.

[benjlevesque]

well done 👏

[coveralls]

Coverage remained the same at 87.842% when pulling 23e7355 on fix/fixing-scheduled-tests into c4c2276 on master.