Enable testing with Ubuntu 22

[cheenamalhotra]

Addresses #2952
We can continue testing with Ub 20 while it's in LTS support.

WIP: Waiting for .NET 9 availability on Ubuntu 22

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 72.47%. Comparing base (2151501) to head (08fba8a).
Report is 45 commits behind head on main.

Additional details and impacted files

@@             Coverage Diff             @@
##             main    #2988       +/-   ##
===========================================
- Coverage   92.58%   72.47%   -20.11%     
===========================================
  Files           6      288      +282     
  Lines         310    59498    +59188     
===========================================
+ Hits          287    43122    +42835     
- Misses         23    16376    +16353     

Flag	Coverage Δ
addons	92.58% <ø> (ø)
netcore	75.41% <ø> (?)
netfx	70.93% <ø> (?)

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[cheenamalhotra]

We don't seem to have .NET 9 available in Ubuntu 22 runner images just yet. Latest image
Neither can we install them as artifacts, due to .NET 9 missing from packages.microsoft.com, ref: dotnet/sdk#44869

Continuing to stay on hold.

[MichelZ]

@cheenamalhotra Can you update the branch from main and see if it works?
I think the pipeline should take care of all .NET needs now

[MichelZ]

Also from the latest build the issue seems to be that it fails to configure SQL Server:
https://sqlclientdrivers.visualstudio.com/public/_build/results?buildId=101168&view=logs&j=73c774a9-2c54-5dc8-eea7-24a41fc100ce&t=9c8fa434-0e21-5143-7879-db8639331619

/usr/bin/bash /mnt/vss/_work/_temp/346a7ca7-f41d-40a6-89d8-7f847b3fb24f.sh
Failed to stop mssql-server.service: Unit mssql-server.service not loaded.
Running mssql-conf setup...
sudo: a terminal is required to read the password; either use the -S option to read from standard input or configure an askpass helper
sudo: a password is required
Waiting for SQL Server to start...
Waiting for SQL Server to start...
Waiting for SQL Server to start...
Waiting for SQL Server to start...
Waiting for SQL Server to start...
Cannot connect to SQL Server, installation aborted

##[error]Bash exited with code '1'.
Finishing: Configure SQL Server [Linux]