docs(helm-upgrade-doc): update Slack channel secret to generic SLACK_CHANNEL

[guimoreirar]

Description

Follow-up to #643. That PR merged the generic SLACK_CHANNEL secret into the helm-upgrade-doc workflow but left docs/helm-upgrade-doc.md referencing the old SLACK_CHANNEL_DEVOPS. This updates the doc to SLACK_CHANNEL, with a note that callers map any channel secret to it (e.g. SLACK_CHANNEL: ${{ secrets.SLACK_CHANNEL_OPS }}).

Resolves the CodeRabbit doc-consistency finding raised on #642/#643.

Type of Change

• docs: Documentation only

Migration

None — doc-only.

[lerian-studio]

🔍 PR Validation Summary

✅ PR Mergeable — no blocking failures

Check	Status	Blocking
Source Branch	✅ success	yes
PR Title	✅ success	yes
PR Description	✅ success	yes
PR Size	✅ success	no
Auto Labels	✅ success	no
PR Metadata	✅ success	no

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[lerian-studio]

🔍 Lint Analysis

Check	Files Scanned	Status
YAML Lint	no changes	⏭️ skipped
Action Lint	no changes	⏭️ skipped
Pinned Actions	no changes	⏭️ skipped
Markdown Link Check	1 file(s)	✅ success
Spelling Check	1 file(s)	✅ success
Shell Check	no changes	⏭️ skipped
README Check	no changes	⏭️ skipped
Composite Schema	no changes	⏭️ skipped
Deployment Matrix	no changes	⏭️ skipped

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[coderabbitai]

Summary by CodeRabbit

• Documentation
  • Updated Helm upgrade guidance to use the generic SLACK_CHANNEL secret.
  • Added an example showing how to map channel-specific secrets.
  • Clarified that inherited secrets must use the exact SLACK_CHANNEL name.

Walkthrough

The Helm upgrade documentation replaces SLACK_CHANNEL_DEVOPS with SLACK_CHANNEL. It explains exact-name matching under secrets: inherit, absent-secret behavior, and explicit mapping for alternate secret names.

Changes

Helm upgrade documentation

Layer / File(s)	Summary
Document generic Slack channel secret docs/helm-upgrade-doc.md	Replaces SLACK_CHANNEL_DEVOPS with SLACK_CHANNEL. Documents inheritance requirements, skipped notifications when the secret is absent, and explicit mapping for differently named secrets.

Estimated code review effort: 1 (Trivial) | ~2 minutes

Possibly related PRs

• LerianStudio/github-actions-shared-workflows#641: Updates related Slack channel secret naming.
• LerianStudio/github-actions-shared-workflows#642: Implements the related SLACK_CHANNEL workflow secret behavior.
• LerianStudio/github-actions-shared-workflows#643: Implements related inheritance and mapping behavior.

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title clearly identifies the documentation file and the Slack secret name update.
Description check	✅ Passed	The description explains the change, identifies it as documentation-only, and states that no migration is required.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch fix/helm-upgrade-doc-slack-channel-generic

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[coderabbitai]

Warning

CodeRabbit couldn't request changes on this pull request because it doesn't have sufficient GitHub permissions.

Please grant CodeRabbit Pull requests: Read and write permission and re-run the review.

👉 Steps to fix this

Actionable comments posted: 1

🤖 Prompt for all review comments with AI agents

Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.

Inline comments:
In `@docs/helm-upgrade-doc.md`:
- Line 109: Update the SLACK_CHANNEL documentation to state that callers using
differently named secrets, such as SLACK_CHANNEL_OPS, must replace secrets:
inherit with an explicit secrets: mapping covering every required secret,
including SLACK_CHANNEL, so Slack notifications receive the channel value.

🪄 Autofix

Fix all unresolved CodeRabbit comments on this PR:

• Push a commit to this branch (recommended)
• Create a new PR with the fixes

---

ℹ️ Review info

⚙️ Run configuration

Configuration used: Path: .coderabbit.yml

Review profile: ASSERTIVE

Plan: Pro

Run ID: 7d952b16-3272-4736-ae9d-388bd15211a3

📥 Commits

Reviewing files that changed from the base of the PR and between 4395d24 and 45a8964.

📒 Files selected for processing (1)

• docs/helm-upgrade-doc.md

[coderabbitai]

Warning

CodeRabbit couldn't request changes on this pull request because it doesn't have sufficient GitHub permissions.

Please grant CodeRabbit Pull requests: Read and write permission and re-run the review.

👉 Steps to fix this

Actionable comments posted: 1

🤖 Prompt for all review comments with AI agents

Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.

Inline comments:
In `@docs/helm-upgrade-doc.md`:
- Line 119: Remove the standalone empty blockquote marker on line 119 in the
documentation so the blockquote has no blank quoted line and satisfies
markdownlint MD028.

🪄 Autofix

Fix all unresolved CodeRabbit comments on this PR:

• Push a commit to this branch (recommended)
• Create a new PR with the fixes

---

ℹ️ Review info

⚙️ Run configuration

Configuration used: Path: .coderabbit.yml

Review profile: ASSERTIVE

Plan: Pro

Run ID: 08b08aee-3bba-4c4b-a3f4-a82af2c845f5

📥 Commits

Reviewing files that changed from the base of the PR and between 45a8964 and 600e758.

📒 Files selected for processing (1)

• docs/helm-upgrade-doc.md