fixup! http_server/health: Implement throughput health check

Address Leonardo review: add missing `free` calls in case of allocation
failure

Signed-off-by: Thiago Padilha <[email protected]>

Author: tchrono

src/http_server/api/v1/health.c

@@ -533,6 +533,7 @@ static void configure_throughput_check(struct flb_config *config)
         flb_utils_split(config->hc_throughput_input_plugins, ',', 0);
 
     if (!throughput_check_state.input_plugins) {
+        flb_free(throughput_check_state.sample_list);
         flb_errno();
         return;
     }
@@ -541,6 +542,8 @@ static void configure_throughput_check(struct flb_config *config)
         flb_utils_split(config->hc_throughput_output_plugins, ',', 0);
 
     if (!throughput_check_state.output_plugins) {
+        flb_free(throughput_check_state.sample_list);
+        flb_free(throughput_check_state.input_plugins);
         flb_errno();
         return;
     }