fix syntax

Author: rwedge

.github/workflows/minimum.yml

@@ -27,7 +27,7 @@ jobs:
           python -m pip install --upgrade pip
           python -m pip install invoke packaging tomli
     - name: Install minimum
-      run: invoke install_minimum
+      run: invoke install-minimum
     - name: Instal test dependencies
       run: python -m pip install .[test]
     - name: Test with minimum versions