Fix some curl type issues

[bbhtt]

../src/builder-utils.c:1186:3: error: call to 'Wcurl_easy_setopt_err_write_callback' declared with 'warning' attribute: curl_easy_setopt expects a curl_write_callback argument [-Werror,-Wattribute-warning]
 1186 |   curl_easy_setopt (session, CURLOPT_WRITEFUNCTION, builder_curl_write_cb);
      |   ^
/usr/include/x86_64-linux-gnu/curl/typecheck-gcc.h:60:15: note: expanded from macro 'curl_easy_setopt'
   60 |               Wcurl_easy_setopt_err_write_callback();                   \
      |               ^
1 error generated.

../src/builder-flatpak-utils.c:1170:3: error: call to 'Wcurl_easy_setopt_err_long' declared with 'warning' attribute: curl_easy_setopt expects a long argument [-Werror,-Wattribute-warning]
 1170 |   curl_easy_setopt (curl_session, CURLOPT_NOPROGRESS, 0);
      |   ^
/usr/include/x86_64-linux-gnu/curl/typecheck-gcc.h:50:15: note: expanded from macro 'curl_easy_setopt'
   50 |               Wcurl_easy_setopt_err_long();                             \
      |               ^
../src/builder-flatpak-utils.c:1169:3: error: call to 'Wcurl_easy_setopt_err_long' declared with 'warning' attribute: curl_easy_setopt expects a long argument [-Werror,-Wattribute-warning]
 1169 |   curl_easy_setopt (curl_session, CURLOPT_MAXREDIRS, 50);
      |   ^
/usr/include/x86_64-linux-gnu/curl/typecheck-gcc.h:50:15: note: expanded from macro 'curl_easy_setopt'
   50 |               Wcurl_easy_setopt_err_long();                             \
      |               ^
../src/builder-flatpak-utils.c:1168:3: error: call to 'Wcurl_easy_setopt_err_long' declared with 'warning' attribute: curl_easy_setopt expects a long argument [-Werror,-Wattribute-warning]
 1168 |   curl_easy_setopt (curl_session, CURLOPT_FOLLOWLOCATION, 1);
      |   ^
/usr/include/x86_64-linux-gnu/curl/typecheck-gcc.h:50:15: note: expanded from macro 'curl_easy_setopt'
   50 |               Wcurl_easy_setopt_err_long();                             \
      |               ^
../src/builder-flatpak-utils.c:1167:3: error: call to 'Wcurl_easy_setopt_err_long' declared with 'warning' attribute: curl_easy_setopt expects a long argument [-Werror,-Wattribute-warning]
 1167 |   curl_easy_setopt (curl_session, CURLOPT_FAILONERROR, 1);
      |   ^
/usr/include/x86_64-linux-gnu/curl/typecheck-gcc.h:50:15: note: expanded from macro 'curl_easy_setopt'
   50 |               Wcurl_easy_setopt_err_long();                             \
      |               ^
../src/builder-flatpak-utils.c:1166:3: error: call to 'Wcurl_easy_setopt_err_long' declared with 'warning' attribute: curl_easy_setopt expects a long argument [-Werror,-Wattribute-warning]
 1166 |   curl_easy_setopt (curl_session, CURLOPT_CONNECTTIMEOUT, 60);
      |   ^
/usr/include/x86_64-linux-gnu/curl/typecheck-gcc.h:50:15: note: expanded from macro 'curl_easy_setopt'
   50 |               Wcurl_easy_setopt_err_long();                             \
      |               ^
5 errors generated.