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 60.75%. Comparing base (95253ac) to head (2a9f920).
⚠️ Report is 158 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2988      +/-   ##
==========================================
- Coverage   67.21%   60.75%   -6.46%     
==========================================
  Files         220      293      +73     
  Lines       45629    65108   +19479     
==========================================
+ Hits        30671    39559    +8888     
- Misses      14958    25549   +10591     

Flag	Coverage Δ
netcore	70.44% <ø> (?)
netfx	64.67% <ø> (-2.54%)	⬇️

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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]

[cheenamalhotra]

/azp run

[azure-pipelines]

Azure Pipelines successfully started running 2 pipeline(s).

[cheenamalhotra]

/azp run

[azure-pipelines]

Azure Pipelines successfully started running 2 pipeline(s).

[cheenamalhotra]

/azp run

[azure-pipelines]

Azure Pipelines successfully started running 2 pipeline(s).

[cheenamalhotra]

/azp run

[azure-pipelines]

Azure Pipelines successfully started running 2 pipeline(s).

[Copilot]

Pull Request Overview

This PR updates the CI pipeline configuration to enable testing on Ubuntu 22.04 while maintaining Ubuntu 20.04 support during its LTS period. The changes prepare the infrastructure for .NET 9 availability on Ubuntu 22.04.

• Adds Ubuntu 22.04 test images alongside existing Ubuntu 20.04 images
• Updates Azure SQL and Enclave SQL test configurations to use Ubuntu 22.04
• Includes a reminder comment to drop Ubuntu 20.04 testing after April 2025