### Is there an existing issue for this?

- [X] I have searched the existing issues

### Feature description

Allow lambda container to have multiple networks not just one.
With the current implementation Lambda network only gets a single network, even though the Localstack container accepts multiple network values.
this is how it works currently:

> Gets the main network of the LocalStack container (if we run in one, bridge otherwise)
    If there are multiple networks connected to the LocalStack container, we choose the first as "main" network

### 🧑‍💻 Implementation

This is where the "main" network value is retrieved, may be it should be a List?
https://github.com/localstack/localstack/blob/a71e661fa6b0189e54b468713f710f0ae1b93791/localstack/utils/container_networking.py#L14

### Anything else?

_No response_
API_PATH_ROOT_2 = "/2021-10-31"
LAMBDA_RUNTIME_PYTHON37 = Runtime.python3_7
LAMBDA_RUNTIME_PYTHON38 = Runtime.python3_8
LAMBDA_RUNTIME_PYTHON39 = Runtime.python3_9
LAMBDA_RUNTIME_NODEJS = Runtime.nodejs
LAMBDA_RUNTIME_NODEJS12X = Runtime.nodejs12_x
LAMBDA_RUNTIME_NODEJS14X = Runtime.nodejs14_x
LAMBDA_RUNTIME_NODEJS16X = Runtime.nodejs16_x
LAMBDA_RUNTIME_JAVA8 = Runtime.java8
LAMBDA_RUNTIME_JAVA8_AL2 = Runtime.java8_al2
LAMBDA_RUNTIME_JAVA11 = Runtime.java11
LAMBDA_RUNTIME_DOTNETCORE31 = Runtime.dotnetcore3_1
LAMBDA_RUNTIME_DOTNET6 = Runtime.dotnet6
LAMBDA_RUNTIME_GOLANG = Runtime.go1_x
LAMBDA_RUNTIME_RUBY27 = Runtime.ruby2_7
LAMBDA_RUNTIME_PROVIDED = Runtime.provided
LAMBDA_RUNTIME_PROVIDED_AL2 = Runtime.provided_al2
LAMBDA_DEFAULT_HANDLER = "handler.handler"
LAMBDA_DEFAULT_RUNTIME = LAMBDA_RUNTIME_PYTHON39  
LAMBDA_DEFAULT_STARTING_POSITION = "LATEST"
DOTNET_LAMBDA_RUNTIMES = [
    LAMBDA_RUNTIME_DOTNETCORE31,
    LAMBDA_RUNTIME_DOTNET6,
]
DOCKER_MAIN_CONTAINER_IP = None
LAMBDA_CONTAINER_NETWORK = None
FUNCTION_NAME_REGEX = re.compile(
    r"(arn:(aws[a-zA-Z-]*)?:lambda:)?((?P<region>[a-z]{2}(-gov)?-[a-z]+-\d{1}):)?(?P<account>\d{12}:)?(function:)?(?P<name>[a-zA-Z0-9-_\.]+)(:(?P<qualifier>\$LATEST|[a-zA-Z0-9-_]+))?"
)  
class ClientError(Exception):