Merge branch 'update/security-tracker' into 'master'

security-tracker: bump to latest release 0.10

See merge request archlinux/infrastructure!300

roles/security_tracker/defaults/main.yml

 ---
-security_tracker_version: "1037e20554e472697268d06fbcba4c9498f9c991"
+security_tracker_version: "9f4b5a385f05500bdb7990e6fae1363c091e1b93"

roles/security_tracker/tasks/main.yml

@@ -26,6 +26,9 @@
       - python-requests
       - python-flask-migrate
       - python-scrypt
+      - python-feedgen
+      - python-pytz
+      - python-email-validator
       - pyalpm
       - sqlite
       - expac