[release-10.11] Add prepackaged version of github plugin v2.7.0 (#35973)

Cherry-pick of e2e7aed678d12e9d2ed121682933943a917a32ba onto release-10.11

Co-authored-by: Nevyana Angelova <nevyangelova@192.168.100.47>

server/Makefile

@@ -143,7 +143,7 @@ TEMPLATES_DIR=templates
 # Plugins Packages
 PLUGIN_PACKAGES ?= $(PLUGIN_PACKAGES:)
 PLUGIN_PACKAGES += mattermost-plugin-calls-v1.11.4
-PLUGIN_PACKAGES += mattermost-plugin-github-v2.5.0
+PLUGIN_PACKAGES += mattermost-plugin-github-v2.7.0
 PLUGIN_PACKAGES += mattermost-plugin-gitlab-v1.12.1
 PLUGIN_PACKAGES += mattermost-plugin-jira-v4.5.0
 # We need to prepackage both versions of playbooks and install the correct one based on the server license. See MM-60025.