Bumping pre-packaged plugin versions. (#11651)

Makefile

@@ -84,8 +84,8 @@ PLUGIN_PACKAGES += mattermost-plugin-autolink-v1.0.0
 PLUGIN_PACKAGES += mattermost-plugin-nps-v1.0.3
 PLUGIN_PACKAGES += mattermost-plugin-custom-attributes-v1.0.0
 PLUGIN_PACKAGES += mattermost-plugin-github-v0.10.2
-PLUGIN_PACKAGES += mattermost-plugin-welcomebot-v1.0.0
-PLUGIN_PACKAGES += mattermost-plugin-aws-SNS-v1.0.0
+PLUGIN_PACKAGES += mattermost-plugin-welcomebot-v1.1.0
+PLUGIN_PACKAGES += mattermost-plugin-aws-SNS-v1.0.2
 PLUGIN_PACKAGES += mattermost-plugin-jira-v2.0.6
 
 # Prepares the enterprise build if exists. The IGNORE stuff is a hack to get the Makefile to execute the commands outside a target