Builds were broken for custom docker image

[squidarth]

Describe the bug

On Aug 17, Truss integration tests started failing. The issue was that there were a few hours that day where there was an issue building Trusses with custom base image. The build failure was:

File has unexpected size (1127072 != 1126689). Mirror sync in progress

When running:

RUN apt update && \
    apt install -y bash \
                build-essential \
                git \
                curl \
                ca-certificates \
                software-properties-common \
    && apt-get autoremove -y \
    && apt-get clean -y \
    && rm -rf /var/lib/apt/lists/*

Note that this only seemed to affect custom docker images, and the issue went away when the nvidia mirror was fixed (see https://forums.developer.nvidia.com/t/failed-to-download-artifacts-from-https-developer-download-nvidia-com-mirror-sync-in-progress/263506/4 for context)

We should take a quick look to see:

• Is this an issue related to the custom docker image that we are using in the integration test, or is this problem braoder than that?
• Are there any remediations we need to take here

To Reproduce
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Expected behavior
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Desktop (please complete the following information):

• OS: [e.g. macOS]
• Environment versions [e.g. python versions, framework/package versions]
• Truss version [e.g. 22]

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