Simplify Gitaly chef gprd configuration

Current configuration

graph TD
    gprd-base-stor-gitaly-common-->gprd-base-stor-gitaly
    gprd-base-stor-gitaly-common-->gprd-base-stor-gitaly-cny
    gprd-base-stor-gitaly-common-->|reduntant|gprd-base-stor-gitaly-hdd
    gprd-base-stor-gitaly-common-->|reduntant|gprd-base-stor-gitaly-marquee
    gprd-base-stor-gitaly-common-->|reduntant|gprd-base-stor-gitaly-praefect

    gprd-base-stor-gitaly-main-->gprd-base-stor-gitaly

    gprd-base-stor-gitaly-->gprd-base-stor-gitaly-hdd
    gprd-base-stor-gitaly-->gprd-base-stor-gitaly-marquee
    gprd-base-stor-gitaly-->gprd-base-stor-gitaly-praefect

✅ Step 1 👉 production#7611 (closed)

graph TD
    gprd-base-stor-gitaly-common-->gprd-base-stor-gitaly
    gprd-base-stor-gitaly-common-->gprd-base-stor-gitaly-cny

    gprd-base-stor-gitaly-main-->|mergeable|gprd-base-stor-gitaly

    gprd-base-stor-gitaly-->gprd-base-stor-gitaly-hdd
    gprd-base-stor-gitaly-->gprd-base-stor-gitaly-marquee
    gprd-base-stor-gitaly-->gprd-base-stor-gitaly-praefect

✅ Step 2 👉 production#7637 (closed)

graph TD
    gprd-base-stor-gitaly-common-->gprd-base-stor-gitaly
    gprd-base-stor-gitaly-common-->gprd-base-stor-gitaly-cny


    gprd-base-stor-gitaly-->gprd-base-stor-gitaly-hdd
    gprd-base-stor-gitaly-->gprd-base-stor-gitaly-marquee
    gprd-base-stor-gitaly-->gprd-base-stor-gitaly-praefect