Pytest-insta

Fix
* Don't use textwrap.indent because all lines need to be prefixed ([`8eaa8c2`](https://github.com/vberlier/pytest-insta/commit/8eaa8c207f8f12566da0d8f4fae0933f72d9afd7))

Fix
* Remove leftover print ([`0f20dd2`](https://github.com/vberlier/pytest-insta/commit/0f20dd2679c47f7acad6d21499f9fd2037d62d26))

Fix
* Handle composite extensions and make pyright happy ([`7dc3cd1`](https://github.com/vberlier/pytest-insta/commit/7dc3cd19540c236de140d8abae74eda846fd5d5d))