Added a new workflow in '.github/workflows/codecov.yml' that runs on all three OS: Ubuntu, MacOS, and Windows with '1.22' version of Go. This workflow performs a test coverage check and then uploads the coverage data to Codecov. The workflow is activated on every 'push' or 'pull request' to the 'main' branch.
The commit includes the addition of four new workflows to the .forgejo workflows directory. These are Codecov for code coverage handling, SonarQube for continuous inspection of code quality, REUSE Compliance Check for license compliance, and golangci-lint for running linters on Go code. The workflows all target the 'main' branch and are triggered by 'push' and 'pull_request' events.