Use first uppercase letter for all handlers

This will unify all the handlers to use first uppercase letter for
ansible-lint to stop complaining.

I went through all `notify:` occurrences and fixed them by running
```
set TEXT "text_to_replace"; set REPLACEMENT "replacement_text"; git grep
-rlz "$TEXT" . | xargs -0 sed -i "s/$TEXT/$REPLACEMENT/g"
```

Then I went through all the changes and removed the ones that wasn't
expected to be changed.

Fixes https://pagure.io/fedora-infrastructure/issue/12391

Signed-off-by: Michal Konecny <mkonecny@redhat.com>

roles/bugzilla2fedmsg/tasks/main.yml

@@ -15,7 +15,7 @@
      src=moksha-hub.service
      dest=/usr/lib/systemd/system/moksha-hub.service
   notify:
-  - restart moksha-hub
+  - Restart moksha-hub
   tags:
   - bugzilla2fedmsg
 
@@ -40,7 +40,7 @@
     group=fedmsg
     mode=0640
   notify:
-  - restart moksha-hub
+  - Restart moksha-hub
   tags:
   - bugzilla2fedmsg
 
@@ -53,7 +53,7 @@
   - msg-client-fedora-prod.crt
   - msg-client-fedora-prod.key
   notify:
-  - restart moksha-hub
+  - Restart moksha-hub
   tags:
   - bugzilla2fedmsg