do an apt update in build_linux_deb-2-installer.sh

[altendky]

original: #19242

Purpose:

https://github.com/Chia-Network/chia-blockchain/actions/runs/13203313957/job/36860402450#step:18:11026

Err:5 http://ports.ubuntu.com/ubuntu-ports focal-updates/main arm64 ruby2.7 arm64 2.7.0-5ubuntu1.15
  404  Not Found [IP: 185.125.190.36 80]
Err:13 http://ports.ubuntu.com/ubuntu-ports focal-updates/main arm64 libruby2.7 arm64 2.7.0-5ubuntu1.15
  404  Not Found [IP: 185.125.190.36 80]
Err:14 http://ports.ubuntu.com/ubuntu-ports focal-updates/main arm64 ruby2.7-dev arm64 2.7.0-5ubuntu1.15
  404  Not Found [IP: 185.125.190.36 80]
Err:16 http://ports.ubuntu.com/ubuntu-ports focal-updates/main arm64 ruby2.7-doc all 2.7.0-5ubuntu1.15
  404  Not Found [IP: 185.125.190.36 80]
E: Failed to fetch http://ports.ubuntu.com/ubuntu-ports/pool/main/r/ruby2.7/ruby2.7_2.7.0-5ubuntu1.15_arm64.deb  404  Not Found [IP: 185.125.190.36 80]
Fetched 3579 kB in 2s (1849 kB/s)
E: Failed to fetch http://ports.ubuntu.com/ubuntu-ports/pool/main/r/ruby2.7/libruby2.7_2.7.0-5ubuntu1.15_arm64.deb  404  Not Found [IP: 185.125.190.36 80]
E: Failed to fetch http://ports.ubuntu.com/ubuntu-ports/pool/main/r/ruby2.7/ruby2.7-dev_2.7.0-5ubuntu1.15_arm64.deb  404  Not Found [IP: 185.125.190.36 80]
E: Failed to fetch http://ports.ubuntu.com/ubuntu-ports/pool/main/r/ruby2.7/ruby2.7-doc_2.7.0-5ubuntu1.15_all.deb  404  Not Found [IP: 185.125.190.36 80]
E: Unable to fetch some archives, maybe run apt-get update or try with --fix-missing?

Current Behavior:

New Behavior:

Testing Notes:

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[github-actions]

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