Merge branch 'increase-limit-for-recursively-include' into 'master'

Increase the limit of includes in CI file to 100

See merge request gitlab-org/gitlab!17807

changelogs/unreleased/increase-limit-for-recursively-include.yml

+---
+title: Increase the limit of includes in CI file to 100
+merge_request: 17807
+author:
+type: fixed

doc/ci/yaml/README.md

@@ -2296,7 +2296,7 @@ or public project, or template is allowed.
 > [Introduced](https://gitlab.com/gitlab-org/gitlab-foss/issues/56836) in GitLab 11.9.
 
 Nested includes allow you to compose a set of includes.
-A total of 50 includes is allowed.
+A total of 100 includes is allowed.
 Duplicate includes are considered a configuration error.
 
 > [Introduced](https://gitlab.com/gitlab-org/gitlab/issues/28212) in GitLab 12.4.

lib/gitlab/ci/config/external/mapper.rb

@@ -7,7 +7,7 @@ module Gitlab
         class Mapper
           include Gitlab::Utils::StrongMemoize
 
-          MAX_INCLUDES = 50
+          MAX_INCLUDES = 100
 
           FILE_CLASSES = [
             External::File::Remote,