feat: added REUSE compliance check

[mfranzke]

Proposed changes

Adding reuse-action

Types of changes

• Bugfix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Refactoring (fix on existing components or architectural decisions)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Documentation Update (if none of the other choices apply)

Further comments

[github-actions]

🔭🐙🐈 Test this branch here: https://db-ui.github.io/mono/review/3572-integrate-reuse

[mfranzke]

this would need to get added to REUSE software to use the Python comment style.

[Copilot]

Pull Request Overview

This PR adds a new REUSE compliance check by incorporating the reuse-action and updating license-related headers across various workflow and configuration files.

• Added SPDX license headers to GitHub workflows, actions, and configuration files.
• Introduced a new REUSE.toml configuration file for license compliance.

Reviewed Changes

Copilot reviewed 1294 out of 1297 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
.github/workflows/*.yml	Added SPDX license headers to workflow files
.github/labeler.yml	Added SPDX license headers with minor label configuration
.github/dependabot.yml	Added SPDX license headers
.github/actions/*/action.yml	Added SPDX license headers to custom actions
.github/PULL_REQUEST_TEMPLATE.md	Added SPDX license headers in PR template
.github/ISSUE_TEMPLATE/bug_report.yaml	Added SPDX license headers in bug report template
.eslintrc.js	Added SPDX license headers
.config/REUSE.toml	Introduced REUSE configuration with license annotations

Files not reviewed (3)

• .editorconfig: Language not supported
• .env.template: Language not supported
• .eslintignore: Language not supported

[Copilot]

The comment in REUSE.toml indicates that the glob targets files in 'resources/img/', but the defined paths (['.json', '.js', '*.yml']) do not match that directory. Please update the comment or adjust the glob patterns to ensure consistency.