Bumped GitLab plugin version to 1.0.1 (#12406)

Makefile

@@ -90,7 +90,7 @@ 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-v2.2.1
-PLUGIN_PACKAGES += mattermost-plugin-gitlab-v1.0.0
+PLUGIN_PACKAGES += mattermost-plugin-gitlab-v1.0.1
 PLUGIN_PACKAGES += mattermost-plugin-jenkins-v1.0.0
 
 # Prepares the enterprise build if exists. The IGNORE stuff is a hack to get the Makefile to execute the commands outside a target