Don't set InsecureSkipVerify

Let's be safe by default for now

src/fluentbit_wendelin.go

@@ -84,7 +84,7 @@ func FLBPluginFlushCtx(ctx, data unsafe.Pointer, length C.int, tag *C.char) int
 	uri := fmt.Sprintf("%s/ingest?reference=%s", dict["streamtool_uri"], dict["reference"])
 	client := &http.Client{
 		Transport: &http.Transport{
-			TLSClientConfig: &tls.Config{InsecureSkipVerify: true},
+			TLSClientConfig: &tls.Config{},
 		},
 	}
 	req, err := http.NewRequest("POST", uri, bytes.NewReader(b))