fix: add secret/token to major-version-updater

[jmeridth]

• add docs
• add link to docs from README
• fix tag name argument from underscore to hyphen

[jmeridth]

We may not be able to do major-version-updater as a reusable workflow due to permissions. When testing I'm getting permissions errors. Trying to solve.

[github-actions]

This PR is stale because it has been open 20 days with no activity. Replace the no-pr-activity label with a work-in-progress label or comment or this will be closed in 5 days.

[github-actions]

This PR is stale because it has been open 20 days with no activity. Replace the no-pr-activity label with a work-in-progress label or comment or this will be closed in 5 days.

[jmeridth]

Merging so I can test from my testing repo.

[Copilot]

Pull Request Overview

This PR adds support for a github-token secret in the Major Version Updater workflow, updates documentation, and standardizes the tag-name input.

• Add github-token secret requirement to major-version-updater.yml and propagate it through tests and docs
• Update README to link the new Major Version Updater documentation
• Rename tag_name to tag-name across relevant workflows

Reviewed Changes

Copilot reviewed 6 out of 6 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
docs/major-version-updater.md	Documented github-token secret input
README.md	Added link to Major Version Updater docs
.github/workflows/test-major-version-updater.yaml	Updated tag_name → tag-name, added github-token secret
.github/workflows/release-image.yaml	Added github-token input (check action compatibility)
.github/workflows/release-discussion.yaml	Switched from env GH_TOKEN to github-token input
.github/workflows/major-version-updater.yaml	Introduced secrets.github-token and renamed tag_name

Comments suppressed due to low confidence (3)

.github/workflows/major-version-updater.yaml:12

• The workflow only requests contents: read but force-pushing tags requires contents: write. Update permissions to contents: write or add write for tags.

permissions:

.github/workflows/release-image.yaml:72

• The docker/build-push-action (or whichever action this step uses) does not accept a github-token input. Confirm the action supports this parameter or remove it to prevent workflow failures.

github-token: ${{ secrets.github-token }}

.github/workflows/release-discussion.yaml:46

• The abirismyname/create-discussion action expects a token via repo-token or github_token input (or via env.GH_TOKEN). Verify the correct parameter name, as github-token may not be recognized.

github-token: ${{ secrets.github-token }}