Use noarch syntax to simplify build matrix

[conda-forge-admin]

Hi! This is the friendly automated conda-forge-webservice.

I've started rerendering the recipe as instructed in #176.

If I find any needed changes to the recipe, I'll push them to this PR shortly. Thank you for waiting!

Here's a checklist to do before merging.

• Bump the build number if needed.

[conda-forge-webservices]

Hi! This is the friendly automated conda-forge-linting service.

I just wanted to let you know that I linted all conda-recipes in your PR (recipe) and found it was in an excellent condition.

[conda-forge-webservices]

Hi! This is the friendly automated conda-forge-linting service.

I wanted to let you know that I linted all conda-recipes in your PR (recipe) and found some lint.

Here's what I've got...

For recipe:

• Non noarch packages should have python requirement without any version constraints.
• Non noarch packages should have python requirement without any version constraints.

[conda-forge-webservices]

Hi! This is the friendly automated conda-forge-linting service.

I just wanted to let you know that I linted all conda-recipes in your PR (recipe) and found it was in an excellent condition.

[hmaarrfk]

@conda-forge-admin please rerender

[hmaarrfk]

@conda-forge-admin please rerender

[ccordoba12]

Hey @hmaarrfk, thanks for your help with this and sorry for the long delay in replying.

We were quite busy preparing Spyder 6.0 and, since our new installers for that version onwards are based in Conda-forge, we didn't want to touch our feedstock in any significant way until the final release.

But now that that's done, I think we can revisit this work, which will help to build our installers much faster (and reduce Conda-forge resource usage too, of course).

I'll open a new PR with the changes you did here to our recipe because this one is outdated now.