17044 FIX gcp_status: Fix KeyError: me-central1

This change affects users which have configured the rule 'Google Cloud Platform (GCP) Status'.
Previously, Checkmk did not handle incidents correctly, which had set `me-central1` as an associated location.
This was the corresponding traceback:
```
  File "/omd/sites/mon_home/lib/python3/cmk/plugins/gcp/agent_based/gcp_status.py", line 72, in parse
    data.setdefault(constants.RegionMap[location.id_], []).append(incident)
KeyError: 'me-central1'
```
With this werk, the crash is fixed.

*Updated the Region Mapping based on this link - https://github.com/GoogleCloudPlatform/gcping/blob/main/tools/terraform/regions.json
*Multiple regions have been added - 'africa-south1', 'europe-west10', 'europe-west12', 'me-central1', 'me-central2'

CMK-21087

Change-Id: Ie2a0ca7d249f6c1add07043550cc301bcba5c1da

.werks/17044.md

@@ -0,0 +1,22 @@
+[//]: # (werk v2)
+# gcp_status: Fix KeyError: me-central1
+
+key        | value
+---------- | ---
+date       | 2025-01-29T10:02:48+00:00
+version    | 2.4.0b1
+class      | fix
+edition    | cre
+component  | checks
+level      | 1
+compatible | yes
+
+This change affects users which have configured the rule 'Google Cloud Platform (GCP) Status'.
+Previously, Checkmk did not handle incidents correctly, which had set `me-central1` as an associated location.
+This was the corresponding traceback:
+```
+  File "/omd/sites/mon_home/lib/python3/cmk/plugins/gcp/agent_based/gcp_status.py", line 72, in parse
+    data.setdefault(constants.RegionMap[location.id_], []).append(incident)
+KeyError: 'me-central1'
+```
+With this werk, the crash is fixed.

cmk/plugins/gcp/lib/constants.py

@@ -11,6 +11,7 @@
     # https://github.com/GoogleCloudPlatform/gcping/blob/main/tools/terraform/regions.json
     # Changes to the right-hand side of this list cause an incompatible change to the service name
     # of the check `gcp_status`
+    "africa-south1": "Johannesburg",
     "asia-east1": "Taiwan",
     "asia-east2": "Hong Kong",
     "asia-northeast1": "Tokyo",
@@ -31,7 +32,11 @@
     "europe-west6": "Zurich",
     "europe-west8": "Milan",
     "europe-west9": "Paris",
+    "europe-west10": "Berlin",
+    "europe-west12": "Turin",
     "europe-southwest1": "Madrid",
+    "me-central1": "Doha",
+    "me-central2": "Dammam",
     "me-west1": "Tel Aviv",
     "northamerica-northeast1": "Montréal",
     "northamerica-northeast2": "Toronto",