ci: prefer env over flags

Signed-off-by: mctaylors <cantsendmails@mctaylors.ru>

.forgejo/workflows/build-push.yaml

@@ -8,6 +8,9 @@ jobs:
   upload:
     name: Upload to production
     runs-on: ubuntu-latest
+    env:
+      PIP_ROOT_USER_ACTION: ignore
+      # see also github.com/actions/setup-python/issues/513
     steps:
       - name: Checkout repository
         uses: actions/checkout@v4
@@ -17,8 +20,8 @@ jobs:
           python-version: '3.13'
       - name: Install dependencies
         run: |
-          pip install --root-user-action ignore -r requirements.txt
-          pip install --root-user-action ignore pyinstaller
+          pip install -r requirements.txt
+          pip install pyinstaller
       - name: Build binary
         run: pyinstaller --onefile main.py
       - name: Set up SSH key