chore: update dependencies, go version, and include testing in CICD

[Stogas]

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[Copilot]

Pull Request Overview

This PR updates the project's dependencies and Go version while refactoring test files to improve organization and adding CI/CD testing workflows.

• Updates Go version from 1.22.5 to 1.25.2 across Dockerfile and CI workflows
• Upgrades multiple dependencies including Gin, GORM, OpenTelemetry, and other packages
• Reorganizes test functions by splitting them into more focused groups with descriptive names

Reviewed Changes

Copilot reviewed 13 out of 14 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
go.mod	Updates Go version to 1.25.2 and upgrades all dependencies to newer versions
Dockerfile	Updates base image to use Go 1.25.2
internal/dto/response_test.go	Splits test functions into focused groups (BasicMapping, EdgeCases)
internal/dto/request_test.go	Reorganizes tests into ValidCases, EdgeCases, and PointerFields groups
internal/config/config_test.go	Splits boolean environment tests into BasicCases and SpecialCases
gin_middlewares_test.go	Reorganizes middleware tests and removes unused helper function
database_test.go	Splits sync algorithm tests into BasicCases, EdgeCases, and ComplexScenario
.golangci.yaml	Updates linter configuration with new structure and settings
.github/workflows/*	Updates CI/CD workflows to include testing and use newer action versions

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