crypto: use OPENSSL_SIZE_T instead of hard coding int

Signed-off-by: Antoine du Hamel <duhamelantoine1995@gmail.com>
PR-URL: #66889
Reviewed-By: Filip Skokan <panva.ip@gmail.com>
Reviewed-By: Tim Perry <pimterry@gmail.com>
Reviewed-By: Ulises Gascón <ulisesgascongonzalez@gmail.com>

Author: aduh95

src/crypto/crypto_context.cc

@@ -1494,7 +1494,7 @@ SpkiCheck CheckSPKIs(const STACK_OF(X509) * certs,
                      X509** offender,
                      int* depth) {
   if (certs == nullptr) return SpkiCheck::kAllowed;
-  for (int i = 0; i < sk_X509_num(certs); i++) {
+  for (OPENSSL_SIZE_T i = 0; i < sk_X509_num(certs); i++) {
     X509* cert = sk_X509_value(certs, i);
     SpkiCheck result = CheckSPKI(cert);
     if (result != SpkiCheck::kAllowed) {