Improve action reliability: try --fix-missing as error suggests

[mattw-nws]

Added --fix-missing to two apt-get install commands, trying to fix occasional builder/runner issues

Additions

Added --fix-missing to two apt-get install commands

Removals

None

Changes

None

Testing

1. Runners executing on this pull request

Screenshots

if [ Linux == 'Linux' ]
  then
    sudo apt-get install -y libnetcdf-dev libnetcdff-dev
...
Get:12 http://azure.archive.ubuntu.com/ubuntu focal/universe amd64 libnetcdff-dev amd64 4.5.2+ds-1build2 [264 kB]
Err:3 http://azure.archive.ubuntu.com/ubuntu focal-updates/main amd64 libcurl4-gnutls-dev amd64 7.68.0-1ubuntu2.7
  404  Not Found [IP: 52.147.[21](https://github.com/NOAA-OWP/ngen/runs/6278018777?check_suite_focus=true#step:3:21)9.192 80]
Fetched 48[22](https://github.com/NOAA-OWP/ngen/runs/6278018777?check_suite_focus=true#step:3:22) kB in 0s (12.7 MB/s)
E: Failed to fetch http://azure.archive.ubuntu.com/ubuntu/pool/main/c/curl/libcurl4-gnutls-dev_7.68.0-1ubuntu2.7_amd64.deb  404  Not Found [IP: 52.147.219.192 80]
E: Unable to fetch some archives, maybe run apt-get update or try with --fix-missing?
Error: Process completed with exit code 100.

Notes

Todos

Checklist

• PR has an informative and human-readable title
• Changes are limited to a single goal (no scope creep)
• Code can be automatically merged (no conflicts)
• Code follows project standards (link if applicable)
• Passes all existing automated tests
• Any change in functionality is tested
• New functions are documented (with a description, list of inputs, and expected output)
• Placeholder code is flagged / future todos are captured in comments
• Project documentation has been updated (including the "Unreleased" section of the CHANGELOG)
• Reviewers requested with the Reviewers tool ➡️

Testing checklist (automated report can be put here)

Target Environment support

• Linux

[christophertubbs]

The only possible issue I can imagine with this is that it might slow down the install by maybe a second or two, which is a supreme nothing-burger.

This gets my seal of approval.