CI linux musl builds

Author: nx10

.github/workflows/release.yml

@@ -5,6 +5,8 @@ permissions:
 
 on:
   push:
+    branches:
+      - main
     tags:
       - v[0-9]+.*
 
@@ -21,10 +23,14 @@ jobs:
     strategy:
       matrix:
         include:
+          - target: aarch64-unknown-linux-musl
+            os: ubuntu-latest
           - target: aarch64-unknown-linux-gnu
             os: ubuntu-latest
           - target: aarch64-apple-darwin
             os: macos-latest
+          - target: x86_64-unknown-linux-musl
+            os: ubuntu-latest
           - target: x86_64-unknown-linux-gnu
             os: ubuntu-latest
           - target: x86_64-apple-darwin