feat(sidecar-extensibility): detect upgradeable contracts and pull ABIs from IPFS

[serichoi65]

Description

In order to side-load contracts to Sidecar, we want to add the following features:

• Detecting an upgradeable contract when we process transaction logs
  • This will not be applicable to EigenLayers' core contracts but only to side-loaded contracts to automatically update contract ABIs
  • This function is not being called in this PR
• Pulling ABIs from IPFS (main source)
  • The contract metadata needs to exist in IPFS in order for us to pull ABIs. Added 10 seconds timeout during HTTP Get
  • TODO: add a fallback source to pull the data from Etherscan

Non-feature updates:

• Added AbiFetcher as a new input to ContractManager
• All tests, except pipelineIntegration_test and restakedStrategies_test, should use a non-paid quiknode url address
• Updated the ethereum NewClient parameter with http.Client to accept mocked client

Fixes #223

Type of change

Please delete options that are not relevant.

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Chore (non-breaking change which does not add functionality)
• Docs (documentation updates)

How Has This Been Tested?

Added tests to prove my fix is effective for all new modules by running

./scripts/goTest.sh -timeout 0 ./pkg/contractManager -v -p 1 -run 'Test_ContractManager'

Checklist:

• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes
• Any dependent changes have been merged and published in downstream modules
• I have checked my code and corrected any misspellings

[non-fungible-nelson]

Hi seri - great PR! Can we have a description please?

[seanmcgary]

@serichoi65 I'll let you fill in the PR body with implementation specifics.

@non-fungible-nelson I added a link to the related github issue this addresses