### Is there an existing issue for this?

- [X] I have searched the existing issues

### Current Behavior

copyObject and putObject (and perhaps other requests) requests are accepted and do not return an error when an SSE KMS key is specified. 

### Expected Behavior

The error which should be returned is KMS.NotFoundException.

### How are you starting LocalStack?

Custom (please describe below)

### Steps To Reproduce

#### How are you starting localstack (e.g., `bin/localstack` command, arguments, or `docker-compose.yml`)

    Localstack testcontainers 

#### Client commands (e.g., AWS SDK code snippet, or sequence of "awslocal" commands)

   Call copyObject/putObject via latest version using AWS SDK V2 and specific a ssekmsKeyId.

```java
final var copyObjectRequestBuilder =
        CopyObjectRequest.builder()
            .serverSideEncryption(ServerSideEncryption.AWS_KMS)
            .ssekmsKeyId("NON-EXISTENT KMS KEY")
            .sourceBucket(sourceBucketName)
            .sourceKey(sourceKey)
            .destinationBucket(destinationBucket)
            .destinationKey(destinationKey);
final var copyObjectResponse = sourceRegionS3Client.copyObject(copyObjectRequest); // Error should be thrown here but localstack does not return an error
```

### Environment

```markdown
- OS: MacOS 13.0
- LocalStack: Latest (v1.2.0)
```


### Anything else?

_No response_
DEFAULT_REGION = (
    os.environ.get("DEFAULT_REGION") or os.environ.get("AWS_DEFAULT_REGION") or AWS_REGION_US_EAST_1
)
HOSTNAME_EXTERNAL = os.environ.get("HOSTNAME_EXTERNAL", "").strip() or LOCALHOST
LOCALSTACK_HOSTNAME = os.environ.get("LOCALSTACK_HOSTNAME", "").strip() or LOCALHOST
DATA_DIR = os.environ.get("DATA_DIR", "").strip()
PERSISTENCE = is_env_true("PERSISTENCE")
CLEAR_TMP_FOLDER = is_env_not_false("CLEAR_TMP_FOLDER")
TMP_FOLDER = os.path.join(tempfile.gettempdir(), "localstack")
VOLUME_DIR = os.environ.get("LOCALSTACK_VOLUME_DIR", "").strip() or TMP_FOLDER
if TMP_FOLDER.startswith("/var/folders/") and os.path.exists("/private%s" % TMP_FOLDER):
    TMP_FOLDER = "/private%s" % TMP_FOLDER
HOST_TMP_FOLDER = os.environ.get("HOST_TMP_FOLDER", TMP_FOLDER)
LEGACY_DIRECTORIES = is_env_true("LEGACY_DIRECTORIES")
LS_LOG = eval_log_type("LS_LOG")
DEBUG = is_env_true("DEBUG") or LS_LOG in TRACE_LOG_LEVELS
DEVELOP = is_env_true("DEVELOP")
DEVELOP_PORT = int(os.environ.get("DEVELOP_PORT", "").strip() or DEFAULT_DEVELOP_PORT)
WAIT_FOR_DEBUGGER = is_env_true("WAIT_FOR_DEBUGGER")
USE_SSL = is_env_true("USE_SSL")
LEGACY_EDGE_PROXY = is_env_true("LEGACY_EDGE_PROXY")
LEGACY_S3_PROVIDER = os.environ.get("PROVIDER_OVERRIDE_S3", "") not in ("asf", "asf_pro")
FAIL_FAST = is_env_true("FAIL_FAST")
USE_SINGLE_REGION = is_env_true("USE_SINGLE_REGION")
TF_COMPAT_MODE = is_env_true("TF_COMPAT_MODE")
DEFAULT_ENCODING = "utf-8"
DOCKER_SOCK = os.environ.get("DOCKER_SOCK", "").strip() or "/var/run/docker.sock"
DOCKER_FLAGS = os.environ.get("DOCKER_FLAGS", "").strip()
DOCKER_CMD = os.environ.get("DOCKER_CMD", "").strip() or "docker"
LEGACY_DOCKER_CLIENT = is_env_true("LEGACY_DOCKER_CLIENT")