fix(workflow): adjust shell usage for musl builds in CI workflow

Author: Gioee

.github/workflows/main.yml

@@ -61,7 +61,7 @@ jobs:
 
     defaults:
       run:
-        shell: bash
+        shell: ${{ matrix.name == 'musl' && 'sh' || 'bash' }}
 
     env:
       CONNECTION_STRING: ${{ secrets.CONNECTION_STRING }}
@@ -90,12 +90,6 @@ jobs:
         run: sudo apt install wabt
 
       - name: build sqlite-sync
-        if: matrix.name == 'musl'
-        run: make extension ${{ matrix.make && matrix.make || ''}}
-        shell: sh
-
-      - name: build sqlite-sync
-        if: matrix.name != 'musl'
         run: make extension ${{ matrix.make && matrix.make || ''}}
 
       - name: windows install sqlite3