contracts-bedrock: simplify hh config for mainnet

[tynes]

Description

hardhat barfs if we pass the zero key in, not sure why we do it everywhere. default to using the 'test test ...' key at index 0 if the private key is not passed instead. this is useful for mainnet migration rehearsals and since the mainnet contracts have already been deployed, unlikely this will be used again and if used again the private key env var MUST be passed anyways

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Latest commit: 5c6ad2b

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[refcell]

FYI @tynes you're just missing a npx prettier --write hardhat.config.ts run for this to pass

[codecov]

Codecov Report

Merging #5857 (5c6ad2b) into develop (9c3103f) will decrease coverage by 0.52%.
The diff coverage is n/a.

Additional details and impacted files

@@             Coverage Diff             @@
##           develop    #5857      +/-   ##
===========================================
- Coverage    42.95%   42.43%   -0.52%     
===========================================
  Files          478      390      -88     
  Lines        30783    28914    -1869     
  Branches       877      509     -368     
===========================================
- Hits         13224    12271     -953     
+ Misses       16533    15664     -869     
+ Partials      1026      979      -47     

Flag	Coverage Δ
bedrock-go-tests	40.55% <ø> (-0.01%)	⬇️
common-ts-tests	?
contracts-bedrock-tests	?
contracts-tests	98.86% <ø> (ø)
core-utils-tests	?
dtl-tests	47.15% <ø> (ø)
fault-detector-tests	29.33% <ø> (ø)
sdk-tests	39.84% <ø> (ø)

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

see 90 files with indirect coverage changes

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