update lighthouse badger workflow

change workflow to main branch

Author: animesh-garg

.github/workflows/lighthouse-badger.yml

@@ -16,7 +16,7 @@ name: "Lighthouse Badger"
 env:
   URLS: https://alshedivat.github.io/al-folio/
   # If any of the following env is blank, a default value is used instead
-  REPO_BRANCH: "${{ github.repository }} master" # target repository & branch e.g. 'dummy/mytargetrepo main'
+  REPO_BRANCH: "${{ github.repository }} main" # target repository & branch e.g. 'dummy/mytargetrepo main'
   MOBILE_LIGHTHOUSE_PARAMS: "--only-categories=performance,accessibility,best-practices,seo --throttling.cpuSlowdownMultiplier=2"
   DESKTOP_LIGHTHOUSE_PARAMS: "--only-categories=performance,accessibility,best-practices,seo --preset=desktop --throttling.cpuSlowdownMultiplier=1"