AAE-35226 Add reusable workflow for dependabot flow management

[atchertchian]

Checklist

• Jira Reference (also in PR title):
• README updated after adding/changing behaviour of an action
• Proposed version increment for release:
  • Patch (bugfix)
  • Minor (new feature)
  • Major (breaking changes)
• External PR link where changes has been tested:

Description

[Copilot]

Pull Request Overview

This PR adds a new reusable workflow for managing dependabot PR flows, providing automated validation and approval processes. The workflow enables external repositories to standardize their dependabot PR handling with configurable label-based triggers and milestone management.

Key changes:

• New reusable workflow with label-based validation triggers
• Automated milestone setting and auto-merge capabilities for approved dependabot PRs
• Integration with existing GitHub actions for PR approval and labeling workflows

[dsibilio]

Agree with Copilot comments about adding docs and version.txt, but I know you already know this and just wanted an early review 😄

[Copilot]

Pull Request Overview

Copilot reviewed 3 out of 3 changed files in this pull request and generated 2 comments.

[Copilot]

Pull Request Overview

Copilot reviewed 3 out of 3 changed files in this pull request and generated 2 comments.

Comments suppressed due to low confidence (1)

docs/README.md:911

• The documentation example uses '@ref' placeholder instead of showing the actual version tag format. This should demonstrate the proper version tag format like '@v9.3.0' for consistency with the coding guidelines.

      - uses: Alfresco/alfresco-build-tools/.github/actions/github-require-secrets@ref

[Copilot]

Pull Request Overview

Copilot reviewed 3 out of 3 changed files in this pull request and generated 2 comments.

[Copilot]

Pull Request Overview

Copilot reviewed 3 out of 3 changed files in this pull request and generated 2 comments.