fix(python): constrain active python fallback

Author: abn

src/poetry/utils/env/python/manager.py

@@ -103,8 +103,9 @@ def get_active_python(cls) -> Python | None:
         for python in ShutilWhichPythonProvider().find_pythons():
             return cls(python=python)
 
-        # fallback to findpython
-        if python := findpython.find():
+        # fallback to findpython, restrict to finding only executables
+        # named "python" as the intention here is just that, nothing more
+        if python := findpython.find("python"):
             return cls(python=python)
 
         return None