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/supybot/tasks/main.yml

@@ -166,7 +166,7 @@
   ansible.builtin.copy: src=zodbot.service dest=/etc/systemd/system/zodbot.service
   when: env == "production"
   notify:
-  - reload systemd
+  - Reload systemd
   tags:
   - config
   - supybot
@@ -182,7 +182,7 @@
   ansible.builtin.copy: src=ursabot.service dest=/etc/systemd/system/ursabot.service
   when: env == "staging"
   notify:
-  - reload systemd
+  - Reload systemd
   tags:
   - config
   - supybot