.github/workflows/mingw.yml: add shell: bash for PR checkout
shell: bash
as well as e62aead26909e83f2c8b940186047f0a88b9f2d6
.github/workflows/mingw.yml: add
shell: bashfor PR checkoutas well as e62aead26909e83f2c8b940186047f0a88b9f2d6