Update deadsnakes PPA URL. (#29)

* Update deadsnakes PPA URL.

* Need to update the apt repo signing key too.

* Fix PGP key ID for real.

Author: ramiro

roles/python/tasks/main.yml

@@ -4,13 +4,13 @@
 
 - name: add snake repo signing key
   become: yes
-  apt_key: id=DB82666C
-           url=http://keyserver.ubuntu.com:11371/pks/lookup?op=get&search=0x5BB92C09DB82666C
+  apt_key: id=6A755776
+           url=http://keyserver.ubuntu.com:11371/pks/lookup?op=get&search=0xBA6932366A755776
            state=present
 
 - name: add snake repository
   become: yes
-  apt_repository: repo='ppa:fkrull/deadsnakes' state=present
+  apt_repository: repo='ppa:deadsnakes/ppa' state=present
 
 - name: install Python
   become: yes