feat: run gaslimit e2e test only and increased block gas limit to 2b

[jonesho]

This PR implements issue(s) #4035

Checklist

• I wrote new tests for my new core changes.
• I have successfully ran tests, style checker and build against my new changes locally.
• I have informed the team of any breaking changes if there are any.

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 68.14%. Comparing base (9dc4304) to head (7b9dc02).
Report is 1 commits behind head on main.

Additional details and impacted files

@@             Coverage Diff              @@
##               main     #490      +/-   ##
============================================
- Coverage     68.22%   68.14%   -0.08%     
  Complexity     1128     1128              
============================================
  Files           319      319              
  Lines         12795    12795              
  Branches       1277     1277              
============================================
- Hits           8729     8719      -10     
- Misses         3540     3547       +7     
- Partials        526      529       +3     

Flag	Coverage Δ		*Carryforward flag
hardhat	98.70% <ø> (ø)		Carriedforward from 9dc4304
kotlin	65.75% <ø> (-0.09%)	⬇️

*This pull request uses carry forward flags. Click here to find out more.

see 2 files with indirect coverage changes

[cla-assistant]

All committers have signed the CLA.