Add GitHub Actions for automated testing

[devin-ai-integration]

Add GitHub Actions for automated testing

This PR adds GitHub Actions workflow configuration to automatically run tests whenever code is pushed to the repository.

Changes

• Added GitHub Actions workflow file to run go build, go test, and go vet on code push
• The workflow uses Go version 1.11 to match the current development environment
• Updated CHANGELOG.md to document the addition

Testing

• Verified tests pass locally with go build && go test
• Verified linting passes with go vet

Link to Devin run: https://app.devin.ai/sessions/4e6cc86cc53a4b22b700e9b865ef43a7
Requested by: developer@upperstream.io

[devin-ai-integration]

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[Copilot]

Pull Request Overview

This PR introduces a GitHub Actions workflow to automatically run testing tasks on code push and pull requests, as well as updates the CHANGELOG to document this addition.

• Added a new GitHub Actions workflow file (.github/workflows/go-test.yml) to run “go build”, “go vet”, and “go test”
• Updated CHANGELOG.md to document the new workflow

Reviewed Changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated no comments.

File	Description
CHANGELOG.md	Updated with an entry documenting the GitHub Actions workflow
.github/workflows/go-test.yml	New workflow file configured to run tests using Go version 1.11