CT AssertionError [ERR_ASSERTION]: unused deprecated strings exist on main. let's remove them #1615

chipper : test-deprecated-string-keys
npm run failed with status code 1:

> chipper@2.0.0 test-deprecated-string-keys
> bash ../perennial-alias/bin/sage run js/scripts/assertAllDeprecatedStringKeysUsed.ts

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node:internal/process/promises:391
    triggerUncaughtException(err, true /* fromPromise */);
    ^

AssertionError [ERR_ASSERTION]: unused deprecated strings exist on main. let's remove them: 
SOCCER_COMMON/characterSet.unitedStatesOfAmerica,
SOCCER_COMMON/characterSet.africa,
SOCCER_COMMON/characterSet.africaModest

    at <anonymous> (/data/share/phet/continuous-testing/ct-main/ct-snapshots/1754039987208/chipper/js/scripts/assertAllDeprecatedStringKeysUsed.ts:80:10) {
  generatedMessage: false,
  code: 'ERR_ASSERTION',
  actual: false,
  expected: true,
  operator: '=='
}

Node.js v20.18.0
Snapshot from 8/1/2025, 3:19:47 AM