Add enterprise to max apps allowance (#54251)

Author: hpsin

data/reusables/apps/maximum-github-apps-allowed.md

@@ -1 +1 @@
-{% ifversion fpt or ghec %}A user or organization can register up to 100 {% data variables.product.prodname_github_apps %}, but there is no limit to how many {% data variables.product.prodname_github_apps %} can be installed on an account.{% endif %}
+{% ifversion fpt or ghec %}A user{% ifversion enterprise-apps-public-beta %}, organization, or enterprise{% else %} or organization{% endif %} can register up to 100 {% data variables.product.prodname_github_apps %}, but there is no limit to how many {% data variables.product.prodname_github_apps %} can be installed on an account.{% endif %}