v9.1.0-alpha.1

What's Changed

• [docs] Miscellaneous docs clean up by @colleenmcginnis in #248
• Small doc fixes by @swallez in #249
• docs: Fix the version number that cannot be pulled by @maoyutofu in #247
• Prepare 9.0.0 by @swallez in #252
• Allow updating transport credentials by @swallez in #254
• [docs] Add products to docset.yml by @colleenmcginnis in #258
• docs-builder: add pull-requests: write permission to docs-build workflow by @reakaleek in #259
• Allow cloning the transport with different credentials by @swallez in #260
• Prepare version 9.1 by @swallez in #261

Full Changelog: v9.0.0-alpha.1...v9.1.0-alpha.1