feat: make blockNumberOrTagOrHash a required parameter for eth_getStorageAt (#3839)

[mwb-al]

Description:

This PR updates the eth_getStorageAt method to require the blockNumberOrTagOrHash parameter, aligning it with the Ethereum OpenRPC specification. It also adjusts validation rules, method signature, and tests to enforce this requirement.

Related issue(s):

Fixes #3839

Checklist

• Documented (Code comments, README, etc.)
• Tested (unit, integration, etc.)

Let's collect two other approvals anyway.

[Ferparishuertas]

LGTM

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

@@           Coverage Diff           @@
##             main    #3879   +/-   ##
=======================================
  Coverage        ?   45.71%           
=======================================
  Files           ?       83           
  Lines           ?     4819           
  Branches        ?      988           
=======================================
  Hits            ?     2203           
  Misses          ?     2280           
  Partials        ?      336           

Files with missing lines	Coverage Δ
...ckages/relay/src/lib/decorators/cache.decorator.ts	69.81% <ø> (ø)
packages/relay/src/lib/eth.ts	52.66% <ø> (ø)
...ices/ethService/contractService/ContractService.ts	25.00% <ø> (ø)

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.
• 📦 JS Bundle Analysis: Save yourself from yourself by tracking and limiting bundle sizes in JS merges.