python-google_auth: build this package with on older version of cachetools

Fixes https://github.com/NixOS/nixpkgs/issues/76978.

pkgs/development/python-modules/cachetools/3.1.1.nix

@@ -0,0 +1,17 @@
+{ stdenv, buildPythonPackage, fetchPypi }:
+
+buildPythonPackage rec {
+  pname = "cachetools";
+  version = "3.1.1";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "8ea2d3ce97850f31e4a08b0e2b5e6c34997d7216a9d2c98e0f3978630d4da69a";
+  };
+
+  meta = with stdenv.lib; {
+    description = "Extensible memoizing collections and decorators";
+    homepage = "https://github.com/tkem/cachetools";
+    license = licenses.mit;
+  };
+}