internal/quic/cmd/interop: use wget --no-verbose in Dockerfile

Pass --no-verbose to wget to avoid spamming the build logs with
progress indicators.

Change-Id: I36a0b91f8dac09cc4055c5d5db3fc61c9b269d6e
Reviewed-on: https://go-review.googlesource.com/c/net/+/551495
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Jonathan Amsterdam <jba@google.com>

internal/quic/cmd/interop/Dockerfile

@@ -9,7 +9,7 @@ ENV GOVERSION=1.21.1
 
 RUN platform=$(echo ${TARGETPLATFORM} | tr '/' '-') && \
   filename="go${GOVERSION}.${platform}.tar.gz" && \
-  wget https://dl.google.com/go/${filename} && \
+  wget --no-verbose https://dl.google.com/go/${filename} && \
   tar xfz ${filename} && \
   rm ${filename}