smart-contract tests fail subsequent runs

[MantisClone]

The smart-contract tests pass on the first run but fail on subsequent runs. This is because they don't reset the aggregator state on the ChainlinkConversionPath contract.

2nd Run:

 1 failing

 1) contract: ChainlinkConversionPath
 admin tasks
 can updateAggregator and updateAggregatorsList:

 AssertionError: expected '0x3333333333333333333333333333333333333333' to equal '0x0000000000000000000000000000000000000000'
 + expected - actual

 -0x3333333333333333333333333333333333333333
 +0x0000000000000000000000000000000000000000
 
 at /home/mantisclone/projects/requestNetwork/packages/smart-contracts/test/contracts/ChainlinkConversionPath.test.ts:35:33
 at Generator.next (<anonymous>)
 at fulfilled (node_modules/tslib/tslib.js:114:62)
 at runMicrotasks (<anonymous>)
 at processTicksAndRejections (node:internal/process/task_queues:96:5)



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lerna ERR! yarn run test stderr:
error Command failed with exit code 1.
error Command failed with exit code 1.

lerna ERR! yarn run test exited 1 in '@requestnetwork/smart-contracts'
error Command failed with exit code 1.
info Visit https://yarnpkg.com/en/docs/cli/run for documentation about this command.