CI conda build improvements
This MR improves the way we build and test LALSuite via conda packages:
- build a feedstock on-the-fly using
conda smithy, then execute it as you would a normal feedstock build
- update the recipes to the latest production content
This has no impact on any library code.
API Changes and Justification
Backwards Compatible Changes
- This change introduces no API changes
- This change adds new API calls
Backwards Incompatible Changes
- This change modifies an existing API
- This change removes an existing API
If any of the Backwards Incompatible check boxes are ticked please provide a justification why this change is necessary and why it needs to be done in a backwards incompatible way.
Please provide details on any reviews related to this change and and the associated reviewers.