chore: add exception handling in amm price query and fix price feeder…

[kenta-elys]

Description

Closes:

• https://github.com/elys-network/issues/issues/532

What has Changed?

What specific problem were you aiming to address, and how did you successfully resolve it? If tests were not uploaded for this pull request or if coverage decreased, please provide an explanation for the change.

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• Fix oracle tx price feeder cli issue
• Add exception handling in query_amm_price
• Update config.yml to include cw testing wallet as price feeder.

Author Checklist

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please add links to any relevant follow up issues.

I have...

• included the correct type prefix in the PR title
• added ! to the type prefix if API or client breaking change
• targeted the correct branch (see PR Targeting)
• provided a link to the relevant issue or specification
• followed the guidelines for building modules
• included the necessary unit and integration tests
• included comments for documenting Go code
• updated the relevant documentation or specification
• reviewed "Files changed" and left comments if necessary
• confirmed all CI checks have passed

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• confirmed the correct type prefix in the PR title
• confirmed ! in the type prefix if API or client breaking change
• confirmed all author checklist items have been addressed
• reviewed state machine logic
• reviewed API design and naming
• reviewed documentation is accurate
• reviewed tests and test coverage
• manually tested (if applicable)

Deployment Notes

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