Fix downgrade workflow trigger for main (#65)

* Fix downgrade workflow main trigger

Co-Authored-By: Chris Rackauckas <accounts@chrisrackauckas.com>

* ci: retry transient failures

Co-Authored-By: Chris Rackauckas <accounts@chrisrackauckas.com>

---------

Co-authored-by: ChrisRackauckas-Claude <accounts@chrisrackauckas.com>

Author: ChrisRackauckas-Claude

.github/workflows/Downgrade.yml

@@ -2,12 +2,12 @@ name: Downgrade
 on:
   pull_request:
     branches:
-      - master
+      - main
     paths-ignore:
       - 'docs/**'
   push:
     branches:
-      - master
+      - main
     paths-ignore:
       - 'docs/**'
 jobs: