fix: fix bitcoin fee rate and increase evm outtx inclusion timeout

[ws4charlie]

Description

The economical fee rate sometimes can be half of the conservative fee rate (forgot about taking a screenshot for that. There other day was around 49sats/vB vs. 26 sats/vb).

monitored a bit more

blocks like 829506, 829530, the Fee Span range was quite wide and Conservative gas rate was 3~4 times of
Economical rate.

Closes: 1707
Closes: 1712

Type of change

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update

How Has This Been Tested?

Please describe the tests that you ran to verify your changes. Include instructions and any relevant details so others can reproduce.

• Tested CCTX in localnet
• Tested in development environment
• Go unit tests
• Go integration tests
• Tested via GitHub Actions

Checklist:

• I have added unit tests that prove my fix feature works

[lumtis]

LGTM, just one comment on the test

[ws4charlie]

LGTM, just one comment on the test

The way I used to run LiveTestSomeTest is to remove the prefix Live of the function (TestBitcoinFeeRate in this case) to make it an executable unit test. It's not an ideal way TBH. If necessary in future, we might need to find a proper way to run tests that require a live mainnet endpoint.