Revert "MAINT: small simplification of meson.build following best practices" (pandas-dev#54802)

* Revert "MAINT: small simplification of meson.build following best practices (pandas-dev#54737)"

This reverts commit ca42994.

* Update meson.build

* Update meson.build

---------

Co-authored-by: Thomas Li <47963215+lithomas1@users.noreply.github.com>

Author: phofl

meson.build

@@ -2,7 +2,7 @@
 project(
     'pandas',
     'c', 'cpp', 'cython',
-    version: run_command(['python3', 'generate_version.py', '--print'], check: true).stdout().strip(),
+    version: run_command(['python', 'generate_version.py', '--print'], check: true).stdout().strip(),
     license: 'BSD-3',
     meson_version: '>=1.0.1',
     default_options: [