Update Python version requirement to 3.10+

Author: LeStarch

README.md

@@ -28,7 +28,7 @@ The following system requirements apply to your workstation for developing F´ a
 
 2. [git](https://git-scm.com/)
 
-3. [Python 3.9+](https://www.python.org/downloads/), [virtual environments](https://docs.python.org/3/library/venv.html), and [PIP](https://pypi.org/project/pip/)
+3. [Python 3.10+](https://www.python.org/downloads/), [virtual environments](https://docs.python.org/3/library/venv.html), and [PIP](https://pypi.org/project/pip/)
 
 4. [Clang](https://clang.llvm.org/) or [GNU C and C++ compilers](https://gcc.gnu.org/) (e.g. gcc and g++)