feat(DesignTokens): Update to use default for deprecated text.primary

mentioned in commit 8d9b36bc

mentioned in merge request gitlab-org/frontend/pajamas-adoption-scanner!326 (merged)

mentioned in merge request gitlab-org/frontend/playground/accessibility-scanner!35 (merged)

mentioned in merge request status-page!903

mentioned in merge request gitlab!151688 (merged)

mentioned in merge request gitlab!151737 (closed)

mentioned in merge request gitlab-org/gitlab-services/design.gitlab.com!3834 (merged)

mentioned in commit 908eaf28

mentioned in merge request gitlab-org/editor-extensions/gitlab-jetbrains-plugin!486 (closed)

mentioned in merge request gitlab-org/editor-extensions/gitlab-jetbrains-plugin!570 (merged)