switch (back) to `dpkg`

Dockerfile

@@ -8,7 +8,6 @@ COPY copyables /
 
 RUN apt-get update \
 	&& apt-get install -y --no-install-recommends \
-	gdebi \
 	gnupg2 \
 	fonts-noto-cjk \
 	pulseaudio \
@@ -23,8 +22,9 @@ ADD https://dl.google.com/linux/linux_signing_key.pub \
 	/tmp/
 
 RUN apt-key add /tmp/linux_signing_key.pub \
-	&& gdebi --non-interactive /tmp/google-chrome-stable_current_amd64.deb \
-	&& gdebi --non-interactive /tmp/chrome-remote-desktop_current_amd64.deb
+	&& dpkg -i /tmp/google-chrome-stable_current_amd64.deb \
+	|| dpkg -i /tmp/chrome-remote-desktop_current_amd64.deb \
+	|| apt-get -f --yes install
 
 RUN apt-get clean \
 	&& rm -rf /var/cache/* /var/log/apt/* /var/lib/apt/lists/* /tmp/* \