[Feat] Add DynamoDB Reader/Writer

[npow]

• E2E tests pending (see Some questions around E2E Tests #496)
• Tested reading/writing manually

[Copilot]

Pull Request Overview

This PR introduces support for DynamoDB as an input and output for Metorikku, enabling both reading from and writing to DynamoDB.

• New writer and reader implementations for DynamoDB
• Updates to configuration files and factory methods to recognize DynamoDB
• Addition of examples, documentation updates, and e2e test scripts for DynamoDB

Reviewed Changes

Copilot reviewed 21 out of 21 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
src/main/scala/com/yotpo/metorikku/output/writers/dynamodb/DynamodbOutputWriter.scala	Adds the DynamoDB writer leveraging Spark’s DataFrameWriter with DynamoDB options
src/main/scala/com/yotpo/metorikku/input/readers/dynamodb/DynamodbInput.scala	Implements the DynamoDB reader based on configurable options
src/main/scala/com/yotpo/metorikku/configuration/job/output/Dynamodb.scala	Defines the output configuration for DynamoDB
src/main/scala/com/yotpo/metorikku/configuration/job/input/Dynamodb.scala	Introduces the input configuration for DynamoDB
src/main/scala/com/yotpo/metorikku/configuration/job/Output.scala src/main/scala/com/yotpo/metorikku/configuration/job/Input.scala src/main/scala/com/yotpo/metorikku/configuration/metric/Output.scala	Integrates DynamoDB as a supported output and input type
examples/dynamodb/*.yaml	Provides example configurations for DynamoDB input/output usage
e2e/*	Adds new e2e test scripts and docker-compose files for DynamoDB, with one instance in the legacy elasticsearch directory

Comments suppressed due to low confidence (1)

e2e/elasticsearch/scripts/elasticsearch_test.sh:1

• This script now queries DynamoDB (e.g. via curl to 'http://${DYNAMODB}/movies') rather than Elasticsearch; consider renaming the file to 'dynamodb_test.sh' to better reflect its purpose.

#!/bin/bash