ci/Dockerfile: bump Quay.io nocache hack
To pick up coreos-installer-0.10.0-2.fc34 from the continuous tag.
For
@@ -11,7 +11,7 @@ WORKDIR /root/containerbuild
COPY ./src/print-dependencies.sh ./src/deps*.txt ./src/vmdeps*.txt ./src/build-deps.txt /root/containerbuild/src/
COPY ./build.sh /root/containerbuild/
RUN ./build.sh configure_yum_repos
-RUN ./build.sh install_rpms # nocache 20210719
+RUN ./build.sh install_rpms # nocache 20210819
# Allow Prow to work
RUN mkdir -p /go && chown 0777 /go
