fix: trigger release workflow on main branch, not master

Made-with: Cursor

.github/workflows/release.yml

@@ -3,7 +3,7 @@ name: Release (anylinux amd64 wheel)
 on:
   push:
     branches:
-      - master
+      - main
   workflow_dispatch:
 
 permissions:
@@ -68,7 +68,7 @@ jobs:
           WHEEL_NAME=$(basename "$WHEEL")
           echo "wheel_name=$WHEEL_NAME" >> "$GITHUB_OUTPUT"
           printf '%s\n' \
-            "Automated build from \`master\` @ [\`${SHORT_SHA}\`](${REPO_URL}/commit/${FULL_SHA})" \
+            "Automated build from \`main\` @ [\`${SHORT_SHA}\`](${REPO_URL}/commit/${FULL_SHA})" \
             "" \
             "**Platform:** Linux amd64 (Alpine-based, portable across Linux distros)" \
             "**Built:** ${DATE}" \