Merge pull request #4107 from OSGeo/backport-4106-to-9.4

[Backport 9.4] Retry "Connection reset by peer"

src/networkfilemanager.cpp

@@ -1675,6 +1675,7 @@ static double GetNewRetryDelay(int response_code, double dfOldDelay,
         // S3 sends some client timeout errors as 400 Client Error
         (response_code == 400 && pszErrBuf &&
          strstr(pszErrBuf, "RequestTimeout")) ||
+        (pszCurlError && strstr(pszCurlError, "Connection reset by peer")) ||
         (pszCurlError && strstr(pszCurlError, "Connection timed out"))) {
         // Use an exponential backoff factor of 2 plus some random jitter
         // We don't care about cryptographic quality randomness, hence: