Unable to match signature header - sha1 issue

[zajinx]

When using webhook the signature header validation fails on Almalinux 9.4 and php83 (via virtualmin) because it uses sha1, when i update the code to use sha2 the problem went away.

/src/Controllers/WebhookController.php line 31 changed from
$encodedSignature = $request->header('x-postal-signature'); to $encodedSignature = $request->header('x-postal-signature-256');

and

line 39 changed from $result = openssl_verify($body, $signature, $rsa_key, OPENSSL_ALGO_SHA1); to $result = openssl_verify($body, $signature, $rsa_key, OPENSSL_ALGO_SHA256);