Update [email protected]

The issue addresses the part where `MACOSX_DEPLOYMENT_TARGET` comes to be out as an integer instead of String(Float). This seems to be an issue with the new MacOS's BigSur update and has been solved in `python3.9` (MACOSX_DEPLOYMENT_TARGET).  However, there's no fix for python3.7 yet.
- Pointed to the right patch for the fix
- Revision bump

(python/cpython#24341)

Author: rohitpk

Formula/[email protected]

@@ -4,7 +4,7 @@ class PythonAT37 < Formula
   url "https://www.python.org/ftp/python/3.7.10/Python-3.7.10.tar.xz"
   sha256 "f8d82e7572c86ec9d55c8627aae5040124fd2203af400c383c821b980306ee6b"
   license "Python-2.0"
-  revision 2
+  revision 3
 
   livecheck do
     url "https://www.python.org/ftp/python/"
@@ -81,8 +81,8 @@ class PythonAT37 < Formula
   # ourselves.
   # https://bugs.python.org/issue42504
   patch do
-    url "https://raw.githubusercontent.com/Homebrew/formula-patches/05a27807/python/3.7.9.patch"
-    sha256 "486188ac1a4af4565de5ad54949939bb69bffc006297e8eac9339f19d7d7492b"
+    url "https://raw.githubusercontent.com/Homebrew/formula-patches/c4bc563a8d008ebd0e8d927c043f6dd132d3ba89/python/big-sur-3.7.patch"
+    sha256 "67c99bdf0bbe0a640d70747aad514cd74602e7c4715fd15f1f9863eef257735e"
   end
 
   # Link against libmpdec.so.3, update for mpdecimal.h symbol cleanup.