ci: turn sdist into separate job

.github/workflows/default.yml

@@ -3,39 +3,40 @@ name: build & test
 on: [push]
 
 jobs:
-  build:
-    strategy:
-      matrix:
-        os: [ubuntu-latest, macos-13, macos-14, windows-latest]
-    runs-on: ${{ matrix.os }}
-    env:
-      CIBW_SKIP: "*p36-* *p37-*"
-      CIBW_ARCHS: auto64
+  sdist:
+    runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
       - name: Set up Python
         uses: actions/setup-python@v5
         with:
           python-version: "3.x"
-      - name: cache native build artifacts
-        uses: actions/cache@v4
-        with:
-          path: build
-          key: taglib-${{ matrix.os }}-${{ hashFiles('build_taglib.py') }}
-      - name: install pip dependencies (Linux)
-        if: ${{ runner.os == 'Linux' }}
+      - name: install pip dependencies
         run: |
           python -m pip install --upgrade pip build
-      - name: sdist (Linux)
-        if: ${{ runner.os == 'Linux' }}
+      - name: sdist
         run: python -m build --sdist
-      - name: upload sdist (Linux)
+      - name: upload sdist
         uses: actions/upload-artifact@v4
-        if: ${{ runner.os == 'Linux' }}
         with:
           name: sdist
           path: dist
           retention-days: 5
+  build:
+    strategy
+      matrix:
+        os: [ubuntu-latest, macos-13, macos-14, windows-latest]
+    runs-on: ${{ matrix.os }}
+    env:
+      CIBW_SKIP: "*p36-* *p37-*"
+      CIBW_ARCHS: auto64
+    steps:
+      - uses: actions/checkout@v4
+      - name: cache native build artifacts
+        uses: actions/cache@v4
+        with:
+          path: build
+          key: taglib-${{ matrix.os }}-${{ hashFiles('build_taglib.py') }}
       - name: build binary wheels
         uses: pypa/[email protected]
       - name: upload wheels
@@ -46,7 +47,7 @@ jobs:
           retention-days: 5
   publish:
     runs-on: ubuntu-latest
-    needs: build
+    needs: [build, sdist]
     if: github.event_name == 'push' && startsWith(github.ref, 'refs/tags')
     steps:
       - name: download source wheel