AwsSecretsManagerVault does not support endpiont overrides

[chlorochrule]

Feature Request

AwsSecretsManagerVaultExtension do not support to override AWS endpoint. I think the option to override AWS endpoint of SecretsManagerClient makes development easier and provides flexibility.

Which Areas Would Be Affected?

Local development, CI, AWS-compatible services: Emulators like localstack are often used in AWS development. However, they require endpoint overrides.

Why Is the Feature Desired?

As mentioned above

Solution Proposal

I already implemented #485
This solution follows S3CoreExtension's implementation

Technology-Aws/extensions/common/aws/aws-s3-core/src/main/java/org/eclipse/edc/aws/s3/S3CoreExtension.java

Line 45 in c43e0bb

private static final String AWS_ENDPOINT_OVERRIDE = "edc.aws.endpoint.override";

Technology-Aws/extensions/common/aws/aws-s3-core/src/main/java/org/eclipse/edc/aws/s3/S3CoreExtension.java

Lines 61 to 64 in c43e0bb

	var endpointOverride = Optional.of(AWS_ENDPOINT_OVERRIDE)
	.map(key -> context.getSetting(key, null))
	.map(URI::create)
	.orElse(null);

[github-actions]

Thanks for your contribution 🔥 We will take a look asap 🚀

[paullatzelsperger]

@chlorochrule removed the triage label. Can you check if this relates to #490?