Resolve "Replace Defend with Protect in marketing graphic"

Why is this change being made?

We have a single source of truth for our devops lifecyle image on the website. It is located at /images/press/devops-lifecycle.svg and has a custom helper that transform it based on what page it's used on here.

This MR updates the devops-lifecylce image used on /solutions/devops-platform/ to use the SVG single source of truth. This ensure that if a stage name is updated in the future, it will be reflected here.

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Author Checklist

• Provided a concise title for the MR
• Added a description to this MR explaining the reasons for the proposed change, per say-why-not-just-what
• Assign this change to the correct DRI
  • If the DRI for the page/s being updated isn’t immediately clear, then assign it to one of the people listed in the "Maintained by" section in on the page being edited.
  • If your manager does not have merge rights, please ask someone to merge it AFTER it has been approved by your manager in #mr-buddies.
  • If the changes relate to any part of the project other than updates to content and/or data files please make sure to ping @gl-static-site-editor in a comment for a review and merge. For example changes to .gitlab-ci.yml, JavaScript/CSS/Ruby code or the layout files. (this requirement has been removed pending identification of a new DRI for the handbook)

Closes #11909 (closed)