Update Lambda Python sample to Lambda Python 3.13 Runtime (#322)

*Issue description:*

*Description of changes:*

*Rollback procedure:*

<Can we safely revert this commit if needed? If not, detail what must be
done to safely revert and why it is needed.>

*Ensure you've run the following tests on your changes and include the
link below:*

To do so, create a `test.yml` file with `name: Test` and workflow
description to test your changes, then remove the file for your PR. Link
your test run in your PR description. This process is a short term
solution while we work on creating a staging environment for testing.

NOTE: TESTS RUNNING ON A SINGLE EKS CLUSTER CANNOT BE RUN IN PARALLEL.
See the
[needs](https://docs.github.com/en/actions/using-workflows/workflow-syntax-for-github-actions#jobsjob_idneeds)
keyword to run tests in succession.
- Run Java EKS on `e2e-playground` in us-east-1 and eu-central-2
- Run Python EKS on `e2e-playground` in us-east-1 and eu-central-2
- Run metric limiter on EKS cluster `e2e-playground` in us-east-1 and
eu-central-2
- Run EC2 tests in all regions
- Run K8s on a separate K8s cluster (check IAD test account for master
node endpoints; these will change as we create and destroy clusters for
OS patching)

By submitting this pull request, I confirm that my contribution is made
under the terms of the Apache 2.0 license.

Author: wangzlei

terraform/python/lambda/lambda/main.tf

@@ -5,7 +5,7 @@ resource "aws_lambda_layer_version" "sdk_layer" {
   count               = var.is_canary ? 0 : 1
   layer_name          = var.sdk_layer_name
   filename            = "${var.layer_artifacts_directory}/layer.zip"
-  compatible_runtimes = ["python3.10", "python3.11", "python3.12"]
+  compatible_runtimes = ["python3.10", "python3.11", "python3.12", "python3.13"]
   license_info        = "Apache-2.0"
   source_code_hash    = filebase64sha256("${var.layer_artifacts_directory}/layer.zip")
 #   filename = "${var.kube_directory_path}/config"
@@ -30,9 +30,6 @@ module "hello-lambda-function" {
 
   environment_variables = {
     AWS_LAMBDA_EXEC_WRAPPER     = "/opt/otel-instrument"
-    OTEL_AWS_APPLICATION_SIGNALS_ENABLED = "true"
-    OTEL_AWS_APPLICATION_SIGNALS_RUNTIME_ENABLED = "false"
-    OTEL_METRICS_EXPORTER       = "none"
   }
 
   tracing_mode = var.tracing_mode

terraform/python/lambda/lambda/variables.tf

@@ -1,7 +1,7 @@
 variable "function_name" {
   type        = string
   description = "Name of sample app function / API gateway"
-  default     = "aws-opentelemetry-distro-nodejs"
+  default     = "aws-opentelemetry-distro-python"
 }
 
 variable "sdk_layer_name" {
@@ -19,7 +19,7 @@ variable "tracing_mode" {
 variable "runtime" {
   type        = string
   description = "Python runtime version used for sample Lambda Function"
-  default     = "python3.12"
+  default     = "python3.13"
 }
 
 variable "architecture" {