Fix failing AMM IT

[sappenin]

• Reduce default amount of XRP in ITs to conform to new 100 XRP faucet policies.
• Update ammendments
• Update rippled container to v2.2

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 91.65%. Comparing base (eabbafe) to head (584c7bf).

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #536 +/- ## ========================================= Coverage 91.65% 91.65% Complexity 1774 1774 ========================================= Files 365 365 Lines 4948 4948 Branches 408 408 ========================================= Hits 4535 4535 Misses 280 280 Partials 133 133 ```

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[sappenin]

Merging this because, despite what this dashboard is showing, we have a passing build on testnet reporting and testnet clio (there's one build for the commit push and one for the PR in each environment).