Support node 20 runtime and package versions

[qianz2]

Task description

Update the azure-pipelines-tool-lib itself to support the Node20 runtime.

Changelog

• Create a new release branch releases/3.x, bump up dependencies package versions.
• Updated pipeline to use Node 20
• Updated dev dependencies
• Updated node 20 version in test.

[qianz2]

How to ensure that the devDependencies in package.json are bumped up as needed?

[qianz2]

Do we need to do anything with this AGENT_VERSION?
process.env['AGENT_VERSION'] = '2.115.0';

azure-pipelines-tool-lib/make.js

Line 133 in c1ca0c0

process.env['AGENT_VERSION'] = '2.115.0';

[DmitriiBobreshev]

I believe we should start from the preview version as we did with the node16 migration

[DmitriiBobreshev]

Do we need to do anything with this AGENT_VERSION? process.env['AGENT_VERSION'] = '2.115.0';

azure-pipelines-tool-lib/make.js

Line 133 in c1ca0c0

process.env['AGENT_VERSION'] = '2.115.0';

Probably not, it's needed for the tests itself

[qianz2]

The changes in this PR is tentative, all migrated tasks are working well without bumping and upgrading this tool-lib, same as for the task-lib microsoft/azure-pipelines-task-lib#962 that I initiated, we've planned to create release branches and check changes to master, but they're not blocking the migration as far as I know. So I will hold it for now, eventually we'll check it in.