Fix failing apt-get install in action for unit tests

[liudmylaru]

Description

Recently unit tests with optional dependencies started failing. Reason - system library install with apt-get on ubuntu failed with "E: Failed to fetch... 404 Not Found" errors. To fix we need to add apt update before using apt-get to install libkrb5-dev graphviz, which required for some of the unit tests with optional dependencies. This libraries can't be installed by pip or conda only.

Jira: no ticket

What was done

• added apt update before apt-get install
• rearranged step "Test env setup" into separate action, to avoid duplicate code
• fixed expected value in test_opctl_conda.py::TestOpctlConda::test_conda_publish
• removed failed test_get_service_packs_cust_tenancy() as redundant one - we already testing response, which is mocked for dev tenancy - test_get_service_packs() - link

Pre-commit

check python ast.........................................................Passed
check docstring is first.............................(no files to check)Skipped
check json...........................................(no files to check)Skipped
check for merge conflicts................................................Passed
check yaml...........................................(no files to check)Skipped
detect private key.......................................................Passed
fix end of files.........................................................Passed
pretty format json...................................(no files to check)Skipped
trim trailing whitespace.................................................Passed
black....................................................................Passed
rst ``code`` is two backticks........................(no files to check)Skipped
rst ``inline code`` next to normal text..............(no files to check)Skipped
Detect hardcoded secrets.................................................Passed
check-copyright..........................................................Passed
[fix_failing_tests_setup 0ccd1c4] Fix failing system library setup for unit tests

[github-actions]

📌 Cov diff with main:

No success to gather report. 😿

📌 Overall coverage:

No success to gather report. 😿

[github-actions]

📌 Cov diff with main:

No success to gather report. 😿

📌 Overall coverage:

No success to gather report. 😿

[lu-ohai]

Thanks!

[github-actions]

📌 Cov diff with main:

No lines with coverage information in this diff.

📌 Overall coverage: