message: Maybe OS instead of pip
diff: # This script runs in the Regression Test CI.
  # We build the current commit and compare it with the Master branch.
  # If there is a diference of 10% in regression on any query the build breaks.
  -import subprocess
  -import sys
  import os
  import statistics
  import time
  -import pip
  def install_duck_master():
  - pip.main(['install', 'duckdb', '--pre'])
  + os.system("pip install duckdb --pre")
  def uninstall_duck():
  - pip.main(['uninstall', '-y', 'duckdb'])
  + os.system("pip uninstall -y duckdb")
  def install_duck_current():
  os.system("BUILD_PYTHON=1 GEN=ninja make release")
  def run_tpch_query(duckdb_conn,query_number):
  - import duckdb
  query_result = []
  for i in range(5):
  query = duckdb_conn.execute("select query from tpch_queries() where query_nr="+str(query_number)).fetchone()[0]
  