use `util.inspect` instead of `JSON.stringify`

[il3ven]

A short PR which fixes #257. The util.inspect() method returns a string representation of object that is intended for debugging.

Sample:

neume-network-strategies:lifecycle Starting to execute strategies with the following crawlPath [
  [
    {
      name: 'call-block-logs',
      extractor: { args: [ 15232606, 15280370 ] }
    }
  ],
  [
    {
      name: 'filter-music-nfts',
      extractor: {
        args: [
          '/neume-network/core/data/call-block-logs-extraction',
          {
            '0xabefbc9fd2f806065b4f3c237d4b59d9a97bcac7': { name: 'zora' },
            '0x0bc2a24ce568dad89691116d5b34deb6c203f342': { name: 'catalog', version: '2.0.0' },
            '0xf5819e27b9bad9f97c177bf007c1f96f26d91ca6': { name: 'noizd' },
            '0x2b5426a5b98a3e366230eba9f95a24f09ae4a584': { name: 'mintsongs', version: '2.0.0' }
          }
        ]
      }
    }
  ],

For displaying logs in a single line like JSON.stringify we can use:

util.inspect(crawlPath, {
    depth: null,
    colors: true,
    breakLength: "Infinity",
    compact: true
})

[TimDaub]

thx