feat(DesignTokens): Update neutral icons

mentioned in commit 816db8ff

mentioned in merge request status-page!903

mentioned in merge request gitlab!183091 (merged)

mentioned in merge request gitlab-org/frontend/playground/accessibility-scanner!64 (merged)

mentioned in merge request gitlab!183200 (merged)

mentioned in merge request gitlab-org/editor-extensions/gitlab-jetbrains-plugin!1551 (merged)

mentioned in merge request gitlab-org/gitlab-services/design.gitlab.com!4332 (merged)

mentioned in merge request gitlab-org/gitlab-services/design.gitlab.com!4333 (merged)

mentioned in merge request gitlab-org/gitlab-services/design.gitlab.com!4334 (closed)

mentioned in merge request gitlab-org/frontend/pajamas-adoption-scanner!367 (merged)