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/openvpn/base/tasks/main.yml

@@ -26,7 +26,7 @@
   - install
   - openvpn
   # notify:
-  # - restart openvpn (Fedora)
+  # - Restart openvpn (Fedora)
 
 - name: Install certificate and key (rhel or fedora) for server
   ansible.builtin.copy: src={{ private }}/files/vpn/pki/ca.crt
@@ -36,7 +36,7 @@
   - install
   - openvpn
   # notify:
-  # - restart openvpn (Fedora)
+  # - Restart openvpn (Fedora)
   when: inventory_hostname.startswith('bastion0')
 
 - name: Install fix-routes.sh script

roles/openvpn/client/tasks/main.yml

@@ -18,7 +18,7 @@
   - install
   - openvpn
 #  notify:
-#  - restart openvpn (Fedora)
+#  - Restart openvpn (Fedora)
 
 - name: Install configuration files (rhel and fedora)
   ansible.builtin.copy: src={{ item.file }}
@@ -35,7 +35,7 @@
   - install
   - openvpn
 #  notify:
-#  - restart openvpn (Fedora)
+#  - Restart openvpn (Fedora)
 
 - name: Make sure openvpn is running in rhel 8+
   service: name=openvpn-client@openvpn state=started enabled=true