chore: use gre task for hardhat tasks

[tmigone]

This PR changes our hardhat tasks using GRE to use greTask instead of hardhat's task. This greatly reduces boilerplate when defining the tasks:

// Before
import { task } from 'hardhat/config'

task('hello-world', 'Say hi!')
  .addOptionalParam('addressBook', 'Path to the address book file.')
  .addOptionalParam('graphConfig', 'Path to the graph config file for the network specified using --network.')
  .addOptionalParam('l1GraphConfig', 'Path to the graph config file for the L1 network.')
  .addOptionalParam('l2GraphConfig', 'Path to the graph config file for the L2 network.')
  .setAction(async (args, hre) => {
    console.log('hello world')
    const graph = hre.graph(args)
})

// After
import { greTask } from '@graphprotocol/sdk/gre'

greTask('hello-world', 'Say hi!')
  .setAction((args, hre) => {
    console.log('hello world')
    const graph = hre.graph(args)
})

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (8210a6f) 92.69% compared to head (eac5fa4) 92.69%.
Report is 3 commits behind head on main.

❗ Current head eac5fa4 differs from pull request most recent head 489d799. Consider uploading reports for the commit 489d799 to get more accurate results

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #915   +/-   ##
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  Coverage   92.69%   92.69%           
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  Files          46       46           
  Lines        2369     2369           
  Branches      426      426           
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  Hits         2196     2196           
  Misses        173      173           

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[Maikol]

I'm not following where the default values are now, or we don't have defaults anymore?

[Maikol]

ah, is it via hardhat config?

[tmigone]

Yeah defaults are set via hardhat config. Setting a default value on task parameters means that the hardhat config values will always be overwritten and i think that's less flexible in general.

The base branch was changed.