feat: Add S3 hook support for upload, download, and list operations

[therev2]

Adds S3 support via the s3-bucket: prefix.

Supports S3.UPLOAD, S3.DOWNLOAD, S3.LIST operations.
Uses AWS_ACCESS_KEY_ID > s3.accessKey > AWS Default profile.
AWS SDK is to avoid bloat.
100% Mockito-backed tests added

Fixes #742

[therev2]

@authorjapps i added the tests and they are present in the file S3integrationtest.java file where the tests are Mockito based which get mapped to .json format
I saw the CI fails and corrected my code (There were a lot of unstaged changes in my code which did not get commit in the old PR)
Also, I ran the S3 tests locally and they were running fine.
I am really sorry for the delay.

[Copilot]

Pull request overview

Adds first-class S3 step support to Zerocode’s multi-step runner via the s3-bucket: URL prefix, enabling scenario steps to UPLOAD, DOWNLOAD, and LIST S3 objects using AWS SDK v2.

Changes:

• Introduces S3_CALL API type detection and routes S3 steps through the scenario runner + service executor.
• Implements S3 client dispatcher (BasicS3Client) and operation handlers (S3Uploader, S3Downloader, S3Lister) with request/response domain models.
• Adds AWS SDK S3 dependency management and new unit tests for the S3 flow.

Reviewed changes

Copilot reviewed 18 out of 18 changed files in this pull request and generated 4 comments.

Show a summary per file

File	Description
pom.xml	Adds AWS SDK version property and manages software.amazon.awssdk:s3 version.
core/pom.xml	Adds optional software.amazon.awssdk:s3 dependency to the core module.
core/src/main/java/org/jsmart/zerocode/core/constants/ZerocodeConstants.java	Adds S3_BUCKET prefix constant used for routing.
core/src/main/java/org/jsmart/zerocode/core/utils/ApiType.java	Adds new S3_CALL enum value.
core/src/main/java/org/jsmart/zerocode/core/utils/ApiTypeUtils.java	Detects s3-bucket: URLs as S3_CALL.
core/src/main/java/org/jsmart/zerocode/core/runner/ZeroCodeMultiStepsScenarioRunnerImpl.java	Routes S3 steps to the executor and normalizes S3.* operations.
core/src/main/java/org/jsmart/zerocode/core/engine/executor/ApiServiceExecutor.java	Adds the executeS3Service API.
core/src/main/java/org/jsmart/zerocode/core/engine/executor/ApiServiceExecutorImpl.java	Wires S3 execution via an injected BasicS3Client.
core/src/main/java/org/jsmart/zerocode/core/s3/client/BasicS3Client.java	Implements S3 client creation, credential resolution, and operation dispatch.
core/src/main/java/org/jsmart/zerocode/core/s3/upload/S3Uploader.java	Implements file upload to S3 using request JSON.
core/src/main/java/org/jsmart/zerocode/core/s3/download/S3Downloader.java	Implements object download to a local path using request JSON.
core/src/main/java/org/jsmart/zerocode/core/s3/list/S3Lister.java	Implements list operation with optional pagination behavior and metadata mapping.
core/src/main/java/org/jsmart/zerocode/core/s3/domain/S3Request.java	Adds request model with aliases (filePath, saveAs, folder) and pagination fields.
core/src/main/java/org/jsmart/zerocode/core/s3/domain/S3Response.java	Adds response model for upload/list/download outputs.
core/src/main/java/org/jsmart/zerocode/core/s3/domain/ObjectInfo.java	Adds list-item metadata model for S3 objects.
core/src/test/java/org/jsmart/zerocode/core/utils/ApiTypeUtilsTest.java	Adds unit tests for S3 URL detection and non-S3 regressions.
core/src/test/java/org/jsmart/zerocode/core/s3/client/BasicS3ClientTest.java	Adds unit tests verifying operation dispatch behavior.
core/src/test/java/org/jsmart/zerocode/core/s3/S3IntegrationTest.java	Adds mocked-S3Client tests for upload/download/list handlers.

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