move to unique tokens per provider

[beckermr]

This issue is for tracking our move to unique tokens per provider.

• [ ] conda-smithy supports new per-provider tokens (https://github.com/conda-forge/conda-smithy/pull/1716, https://github.com/conda-forge/conda-smithy/pull/1717)
• [x] conda-forge-ci-setup provides provider key in http request (https://github.com/conda-forge/conda-forge-ci-setup-feedstock/pull/226)
• [x] conda-forge-webservices accepts new per-provider tokens (https://github.com/conda-forge/conda-forge-webservices/pull/529)
• [ ] update tests in conda-forge-webservices to use tokens per provider
• [ ] admin-migration to new per-ci tokens
• [ ] staged-recipes generates per-provider tokens