Release v1.3.0

[mickmister]

Summary

• https://github.com/mattermost/mattermost-plugin-confluence/pull/92
• https://github.com/mattermost/mattermost-plugin-confluence/pull/63
• https://github.com/mattermost/mattermost-plugin-confluence/pull/62
• https://github.com/mattermost/mattermost-plugin-confluence/pull/66
• https://github.com/mattermost/mattermost-plugin-confluence/pull/65
• https://github.com/mattermost/mattermost-plugin-confluence/pull/74

Ticket Link

https://github.com/mattermost/mattermost-plugin-confluence/issues/95