Update yarnpkg GPG key (#45973)

Dockerfile.dev

 FROM mcr.microsoft.com/vscode/devcontainers/python:0-3.8
 
+SHELL ["/bin/bash", "-o", "pipefail", "-c"]
+
 RUN \
-    apt-get update && apt-get install -y --no-install-recommends \
+    curl -sS https://dl.yarnpkg.com/debian/pubkey.gpg | apt-key add - \
+    && apt-get update \
+    && DEBIAN_FRONTEND=noninteractive apt-get install -y --no-install-recommends \
         libudev-dev \
         libavformat-dev \
         libavcodec-dev \