chore(aws): support new eusc partition (#9649)

Co-authored-by: Pepe Fagoaga <pepe@prowler.com>

docs/developer-guide/provider.mdx

@@ -220,6 +220,7 @@ The function returns a JSON file containing the list of regions for the provider
           "sa-east-1", "us-east-1", "us-east-2", "us-west-1", "us-west-2"
         ],
         "aws-cn": ["cn-north-1", "cn-northwest-1"],
+        "aws-eusc": ["eusc-de-east-1"],
         "aws-us-gov": ["us-gov-east-1", "us-gov-west-1"]
       }
     }

docs/user-guide/providers/aws/regions-and-partitions.mdx

@@ -6,15 +6,16 @@ By default Prowler is able to scan the following AWS partitions:
 
 - Commercial: `aws`
 - China: `aws-cn`
+- European Sovereign Cloud: `aws-eusc`
 - GovCloud (US): `aws-us-gov`
 
 <Note>
 To check the available regions for each partition and service, refer to: [aws\_regions\_by\_service.json](https://github.com/prowler-cloud/prowler/blob/master/prowler/providers/aws/aws_regions_by_service.json)
 
 </Note>
-## Scanning AWS China and GovCloud Partitions in Prowler
+## Scanning AWS China, European Sovereign Cloud and GovCloud Partitions in Prowler
 
-When scanning the China (`aws-cn`) or GovCloud (`aws-us-gov`), ensure one of the following:
+When scanning the China (`aws-cn`), European Sovereign Cloud (`aws-eusc`) or GovCloud (`aws-us-gov`) partitions, ensure one of the following:
 
 - Your AWS credentials include a valid region within the desired partition.
 
@@ -83,6 +84,29 @@ To scan an account in the AWS GovCloud (US) partition (`aws-us-gov`):
 <Note>
 With this configuration, all partition regions will be scanned without needing the `-f/--region` flag
 
+</Note>
+### AWS European Sovereign Cloud
+
+To scan an account in the AWS European Sovereign Cloud partition (`aws-eusc`):
+
+- By using the `-f/--region` flag:
+
+    ```
+    prowler aws --region eusc-de-east-1
+    ```
+
+- By using the region configured in your AWS profile at `~/.aws/credentials` or `~/.aws/config`:
+
+    ```
+    [default]
+    aws_access_key_id = XXXXXXXXXXXXXXXXXXX
+    aws_secret_access_key = XXXXXXXXXXXXXXXXXXX
+    region = eusc-de-east-1
+    ```
+
+<Note>
+With this configuration, all partition regions will be scanned without needing the `-f/--region` flag
+
 </Note>
 ### AWS ISO (US \& Europe)
 
@@ -99,6 +123,9 @@ The AWS ISO partitions—commonly referred to as "secret partitions"—are air-g
         "cn-north-1",
         "cn-northwest-1"
     ],
+    "aws-eusc": [
+        "eusc-de-east-1"
+    ],
     "aws-us-gov": [
         "us-gov-east-1",
         "us-gov-west-1"