feat(protocol): whitelist provers & temporarily disable coverage check

[davidtaikocha]

Currently some PRs' CI checks failed since codecov will automatically add two actions to measure the coverage diff against the base of that PR, e.g: #287

Since our code is often written and tested by different person and PR, we need to disable these codecov actions?

Currently one of our codecov badges is always unknown:

This PR also tries to fix this.

[codecov]

Codecov Report

Merging #296 (1e2af2f) into main (54a266d) will decrease coverage by 5.26%.
The diff coverage is 5.00%.

@@            Coverage Diff             @@
##             main     #296      +/-   ##
==========================================
- Coverage   68.87%   63.60%   -5.27%     
==========================================
  Files          25       79      +54     
  Lines        1073     2377    +1304     
  Branches        0      269     +269     
==========================================
+ Hits          739     1512     +773     
- Misses        263      796     +533     
+ Partials       71       69       -2     

Flag	Coverage Δ		*Carryforward flag
protocol	59.82% <5.00%> (?)
relayer	68.57% <ø> (-0.30%)	⬇️	Carriedforward from 54a266d

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

Impacted Files	Coverage Δ
packages/protocol/contracts/L1/LibData.sol	21.42% <ø> (ø)
packages/protocol/contracts/L1/TaikoL1.sol	19.51% <0.00%> (ø)
packages/protocol/contracts/L1/v1/V1Proving.sol	0.00% <0.00%> (ø)
...col/contracts/test/bridge/libs/TestBadReceiver.sol	40.00% <ø> (ø)
...ol/contracts/test/thirdparty/TestMessageSender.sol	100.00% <ø> (ø)
.../contracts/test/bridge/libs/TestLibBridgeRetry.sol	100.00% <100.00%> (ø)
packages/relayer/types.go
packages/relayer/event.go
...contracts/test/bridge/libs/TestLibBridgeSignal.sol	0.00% <0.00%> (ø)
... and 54 more

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