More action fiddling; reorder checkout/download, set run conditions

Tweaking the run conditions temporarily while troubleshooting this;
these should be reverted.

.github/workflows/build_upload_pypi_wheels.yml

@@ -1,9 +1,10 @@
 name: Build and upload PyPI wheels and source dist
 
 on:
-  release:
-    types: [published]
-  workflow_dispatch:
+  # release:
+  #   types: [published]
+  # workflow_dispatch:
+  pull_request:
 
 jobs:
   build-sdist:
@@ -55,22 +56,23 @@ jobs:
       fail-fast: false
     runs-on: ${{ matrix.os }}
     steps:
+      - uses: actions/checkout@v4
+        with:
+          fetch-depth: 0 # Ensure tags are fetched for versioning
+
       - name: Download sdist
         uses: actions/download-artifact@v4
         with:
+          name: python-source-distribution
           path: dist/
 
-      - name: Rename dowloaded sdist
+      - name: Rename downloaded sdist
         shell: bash -l {0}
         run: |
           ls -R dist
           mv $(find dist/ -name 'euphonic*.tar.gz') dist/euphonic.tar.gz
           ls -R dist
 
-      - uses: actions/checkout@v4
-        with:
-          fetch-depth: 0 # Ensure tags are fetched for versioning
-
       - name: Setup Python ${{ matrix.python-version }}
         uses: actions/setup-python@v5
         with:

.github/workflows/run_tests.yml

@@ -5,8 +5,8 @@ on:
       - '**master**'
       - '**_run_ci**'
       - '**release**'
-  pull_request:
-    types: [opened, reopened, labeled, synchronize]
+  # pull_request:
+  #   types: [opened, reopened, labeled, synchronize]
   workflow_dispatch:
 
 jobs:

.github/workflows/test_windows_sdist.yml

@@ -1,7 +1,7 @@
 name: test-sdist
 on:
-  pull_request:
-    types: [opened, reopened, labeled, synchronize]
+  # pull_request:
+  #   types: [opened, reopened, labeled, synchronize]
 
 jobs:
   build: