Rename branch to "main"

Author: nicolas-grekas

.github/workflows/callable-flex-update-archived.yml

@@ -4,7 +4,7 @@ on:
     workflow_call:
         inputs:
             branch:
-                default: master
+                default: main
                 required: false
                 type: string
 

.github/workflows/flex-update.yml

@@ -3,7 +3,7 @@ name: Update Flex endpoint
 on:
     push:
         branches:
-            - master
+            - main
 
 defaults:
     run:
@@ -13,5 +13,4 @@ jobs:
     call-flex-update:
         uses: symfony/recipes/.github/workflows/callable-flex-update.yml@main
         with:
-            branch: master
             versions_json: .github/versions.json

.github/workflows/qa.yml

@@ -11,4 +11,4 @@ jobs:
     call-qa:
         uses: symfony/recipes/.github/workflows/callable-qa.yml@main
         with:
-            branch: master
+            branch: main