Deprecate pipeline title setting in favor of pipeline name

[olblak]

I don't fully remember why but at some point I introduce both the pipeline setting name and title.
In my opinion they both solves the same purpose, being able to specify a small description for the pipeline such as

name: bump package version to XXX

After looking at the code, I noticed that many time I default one of the two value based on the other one, such as set name based on title, etc...

This increase even more the confusion :(

This pullrequest consolidate on name and deprecated title.
Since https://github.com/updatecli/updatecli/releases/tag/v0.63.0, jsonschema validation trigger an error if title is defined so I am planning to wait a bit before fully deprecating this setting.

Second change introduced in this pullrequest, is how actionid is generated. We now only use the pipeline title which shouldn't change over time. This fix improve pullrequest body

Please note that name and title are not related to pipelineid which solves a totally different problem.

Test

This thing that we could test is to verify that a manifest using the setting title triggers a warning message.
Everything else should be working as expected.

Additional Information

Tradeoff

Potential improvement