Fix RLP codecov uploads

[acolytec3]

WIP

[codecov]

Codecov Report

Merging #3130 (802b5ad) into master (9f91d22) will increase coverage by 14.15%.
Report is 3 commits behind head on master.
The diff coverage is n/a.

❗ Current head 802b5ad differs from pull request most recent head 768c8b4. Consider uploading reports for the commit 768c8b4 to get more accurate results

Additional details and impacted files

Flag	Coverage Δ
block	?
blockchain	?
client	?
common	?
ethash	?
evm	?
genesis	100.00% <ø> (?)
rlp	?
statemanager	?
trie	?
tx	?
util	?
vm	?

Flags with carried forward coverage won't be shown. Click here to find out more.

[acolytec3]

Closing for now. Will revisit again at some point.