fix: amendment version data source changed (#954)

## High Level Overview of Change

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Please include a summary/list of the changes.
If too broad, please consider splitting into multiple PRs.
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The repo `xrpl-dev-portal` was updated recently. The data source link
for fetching amendment version needs to be updated accordingly to ensure
data shows up.

### Type of Change

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Please check relevant options, delete irrelevant ones.
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- [x] 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)
- [ ] Refactor (non-breaking change that only restructures code)
- [ ] Tests (You added tests for code that already exists, or your new
feature included in this PR)
- [ ] Documentation Updates
- [ ] Translation Updates
- [ ] Release

## Test Plan

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provide instructions so that others can reproduce.
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Pass tests.

src/containers/shared/amendmentUtils.ts

@@ -69,7 +69,7 @@ export async function nameOfAmendmentID(id: string) {
 
 async function fetchMinRippledVersions() {
  const response = await axios.get(
- 'https://raw.githubusercontent.com/XRPLF/xrpl-dev-portal/master/content/resources/known-amendments.md',
+ 'https://raw.githubusercontent.com/XRPLF/xrpl-dev-portal/b3cb2c667a03f0b043989958706497bf54c74cc2/resources/known-amendments.md',
  )
  const text = response.data
  const mapping: any = {}