chore: rename master branch to main in CI workflow

Author: bramp

.github/workflows/test.yml

@@ -2,10 +2,10 @@ name: Java CI with Maven
 
 on:
   push:
-    branches: [ "master" ]
+    branches: [ "main" ]
     tags: [ "ffmpeg-*" ]
   pull_request:
-    branches: [ "master" ]
+    branches: [ "main" ]
   workflow_dispatch:
     inputs:
       skipTests:
@@ -42,7 +42,7 @@ jobs:
         run: mvn --batch-mode verify -Dgpg.skip -DskipTests=${{ github.event.inputs.skipTests || 'false' }}
 
       - name: Update dependency graph
-        if: matrix.java-version == '21' && github.event_name == 'push' && github.ref == 'refs/heads/master'
+        if: matrix.java-version == '21' && github.event_name == 'push' && github.ref == 'refs/heads/main'
         uses: advanced-security/maven-dependency-submission-action@v4
         continue-on-error: true