use {$var} instead of ${var}

[fuwasegu]

Starting with PHP 8.2, there is a deprecated notation for embedding variables in strings
Reference: https://www.php.net/manual/en/migration82.deprecated.php

In this repository, there was an embedding using ${var}, which has been corrected to {$var}.

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[sonarqubecloud]

Quality Gate failed

Failed conditions
B Reliability Rating on New Code (required ≥ A)
D Maintainability Rating on New Code (required ≥ A)

See analysis details on SonarCloud

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[fuwasegu]

I seem to be getting sonarcloud errors
It is true that the file I modified seems to be the target of the check, but my modification has nothing to do with it.

Is this a problem I should fix?

[sunaoka]

When will this pull request be merged?

[fuwasegu]

I suspect this repository will no longer be maintained.