MM-28103: prepackage incident-response (#15360)

Co-authored-by: Mattermod <mattermod@users.noreply.github.com>

Makefile

@@ -94,6 +94,7 @@ PLUGIN_PACKAGES += mattermost-plugin-antivirus-v0.1.2
 PLUGIN_PACKAGES += mattermost-plugin-jira-v2.3.2
 PLUGIN_PACKAGES += mattermost-plugin-gitlab-v1.1.0
 PLUGIN_PACKAGES += mattermost-plugin-jenkins-v1.0.0
+PLUGIN_PACKAGES += mattermost-plugin-incident-response-v0.6.0
 
 # Prepares the enterprise build if exists. The IGNORE stuff is a hack to get the Makefile to execute the commands outside a target
 ifeq ($(BUILD_ENTERPRISE_READY),true)