Update jira_uri_template configuration default to https://rubinobs.atlassian.net/browse/{issue}. This will make all :jira:, :jirab:, and :jirap: roles point to the new Jira instance for Rubin Observatory.
Drop jira.lsstcorp.org from the linkcheck ignore list defaults for documenteer.config.guide since that instance is no longer being used.
Replace jira.lsstcorp.org URLs in documentation to rubinobs.atlassian.net.
jira_uri_templateconfiguration default tohttps://rubinobs.atlassian.net/browse/{issue}. This will make all :jira:, :jirab:, and :jirap: roles point to the new Jira instance for Rubin Observatory.jira.lsstcorp.orgfrom the linkcheck ignore list defaults fordocumenteer.config.guidesince that instance is no longer being used.jira.lsstcorp.orgURLs in documentation torubinobs.atlassian.net.