Bumped Welcome bot plugin version to 1.1.1 (#12407)

Makefile

@@ -86,7 +86,7 @@ PLUGIN_PACKAGES += mattermost-plugin-autolink-v1.1.0
 PLUGIN_PACKAGES += mattermost-plugin-nps-v1.0.3
 PLUGIN_PACKAGES += mattermost-plugin-custom-attributes-v1.0.2
 PLUGIN_PACKAGES += mattermost-plugin-github-v0.10.2
-PLUGIN_PACKAGES += mattermost-plugin-welcomebot-v1.1.0
+PLUGIN_PACKAGES += mattermost-plugin-welcomebot-v1.1.1
 PLUGIN_PACKAGES += mattermost-plugin-aws-SNS-v1.0.2
 PLUGIN_PACKAGES += mattermost-plugin-antivirus-v0.1.1
 PLUGIN_PACKAGES += mattermost-plugin-jira-v2.2.0