The spfx ci/cd commands generate wokrflow/pipeline that use `gulp` for SPFx 1.22.x projects

[Adam-it]

In spfx project azuredevops pipeline add and spfx project github workflow add we generate workflows/pipelines that will always use gulp for building and packaging. This makes sense only for projects that have SPFx <= 1.21.x. For projects with newer SPFx version, so >= 1.22.x, we should use heft.

In this PR #6766, we already check the SPFx project version and set the right node version for that project. I suggest we extend this functionality even further and dynamically set to use gulp or heft based on the SPFx project version.

[Adam-it]

@pnp/cli-for-microsoft-365-maintainers any feed?
Alternative approach I may think of is to add a new command option to specify either gulp or heft with default to heft. But I suggest, as descirbed in the issue, to dynamically set this based on SPFx project version

[milanholemans]

It would make sense to me to decide it automatically by the SPFx version used indeed.

[Adam-it]

Thanks, @milanholemans for the fast response. If thats ok with you I will proceed it with that way. Will try to implement this as soon as we manage to sort out and merge the mentioned PR

[Adam-it]

the related PR got merged, I will start working on it