Replace 'Settings ➔ CI/CD Pipelines' with 'Settings ➔ Pipelines' in docs

Description

In some docs we still have Settings ➔ CI/CD Pipelines, while somewhere in the recent past it was changed to Settings ➔ Pipelines.

References

Old name can be find in the following pages:

• https://docs.gitlab.com/ee/user/project/pipelines/settings.html
• https://docs.gitlab.com/ce/ci/quick_start/README.html