Fix Homebrew formula: disable bottles to avoid relocation errors

The homebrew-mfc tap CI was failing with 'Failed changing dylib ID' errors
when trying to relocate compiled Python C extensions (orjson.so) in the venv.

Added pour_bottle? method returning false to disable bottles entirely,
forcing source builds. This is the correct approach for formulas with
Python venvs containing compiled extensions that cannot be relocated.

The previous skip_relocation! directive was incorrect as it's only valid
inside a bottle block, not at the class level.

Author: sbryngelson

packaging/homebrew/mfc.rb

@@ -21,6 +21,11 @@ class Mfc < Formula
   depends_on "openblas"
   depends_on "python@3.12"
 
+  # Disable bottles due to Python venv with compiled extensions that can't be relocated
+  def pour_bottle?
+    false
+  end
+
   def install
     # Create Python virtual environment inside libexec (inside Cellar for proper bottling)
     venv = libexec/"venv"