Revert "gnu: python-mako: Update to 1.0.7."

This causes a mass rebuild due to python2-mako rebuilding Mesa. Pushed on
staging instead.

This reverts commit fc7c91a53a9c5c4ce0fd6d62dd8a57f4d2e6a590.

gnu/packages/python.scm

@@ -7652,14 +7652,14 @@ python-xdo for newer bindings.)")
 (define-public python-mako
   (package
     (name "python-mako")
-    (version "1.0.7")
+    (version "1.0.6")
     (source
      (origin
        (method url-fetch)
        (uri (pypi-uri "Mako" version))
        (sha256
         (base32
-         "1bi5gnr8r8dva06qpyx4kgjc6spm2k1y908183nbbaylggjzs0jf"))))
+         "03dyxgjknp4ffsv7vwfd28l5bbpzi0ylp20543wpg3iahyyrwma8"))))
     (build-system python-build-system)
     (propagated-inputs
      `(("python-markupsafe" ,python-markupsafe)))