docs: Remove me-central2 from availability (#7732)

This region is blocked from use.

website/src/app/kb/architecture/tech-stack/map.py

@@ -30,7 +30,6 @@ coordinates = [
     {"city": "Turin, Italy", "lon": 7.6869, "lat": 45.0703},
     {"city": "Madrid, Spain", "lon": -3.7038, "lat": 40.4168},
     {"city": "Doha, Qatar", "lon": 51.2285, "lat": 25.2760},
-    {"city": "Dammam, Saudi Arabia", "lon": 50.0888, "lat": 26.4207},
     {"city": "Tel Aviv, Israel", "lon": 34.7818, "lat": 32.0853},
     {"city": "Montréal, Canada", "lon": -73.5673, "lat": 45.5017},
     {"city": "Toronto, Canada", "lon": -79.3837, "lat": 43.6511},

website/src/app/kb/architecture/tech-stack/readme.mdx

@@ -132,7 +132,6 @@ zones for load balancing and latency optimization:
 | Turin, Italy                       | `europe-west12`           | `europe-west12-a`           |
 | Madrid, Spain                      | `europe-southwest1`       | `europe-southwest1-a`       |
 | Doha, Qatar                        | `me-central1`             | `me-central1-a`             |
-| Dammam, Saudi Arabia               | `me-central2`             | `me-central2-a`             |
 | Tel Aviv, Israel                   | `me-west1`                | `me-west1-a`                |
 | Montréal, Canada                   | `northamerica-northeast1` | `northamerica-northeast1-a` |
 | Toronto, Canada                    | `northamerica-northeast2` | `northamerica-northeast2-a` |