docs(charts): correct identity chart deprecation notice

[petersutter]

How to categorize this PR?
/area documentation
/kind cleanup

What this PR does / why we need it:

Corrects the deprecation notice in the identity Helm chart README. The identity chart is removed without replacement, not migrated to gardener-operator.

Which issue(s) this PR fixes:
Ref #2935

Special notes for your reviewer:

Release note:

NONE

Summary by CodeRabbit

• Documentation
  • Updated deprecation notice for the identity chart: clarified removal timeline to around November 2026 and removed prior migration guidance.
  • Updated deprecation callout for the dashboard chart to a CAUTION-style notice and adjusted wording to state removal earliest around November 2026.

[gardener-prow]

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[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro

Run ID: bdf2bca8-e895-4320-b2e6-414ee1b77734

📥 Commits

Reviewing files that changed from the base of the PR and between bb23892 and 6f255a4.

📒 Files selected for processing (2)

• charts/gardener-dashboard/README.md
• charts/identity/README.md

✅ Files skipped from review due to trivial changes (2)

• charts/gardener-dashboard/README.md
• charts/identity/README.md

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📝 Walkthrough

Walkthrough

Update deprecation callouts in two Helm chart READMEs: adjust removal timeline wording in charts/gardener-dashboard/README.md and mark the charts/identity/README.md removal as “without replacement” with an approximate date of around November 2026.

Changes

Chart README deprecation edits

Layer / File(s)	Summary
Deprecation callout wording updates charts/gardener-dashboard/README.md, charts/identity/README.md	Changed deprecation/removal phrasing: dashboard README timeline wording adjusted to "removed earliest around November 2026"; identity README now states removal "without replacement" and an approximate "around November 2026", removing prior migration guidance.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~3 minutes

Possibly related PRs

• gardener/dashboard#2935: Overlapping deprecation message edits for chart README files.

Suggested labels

size/S

Suggested reviewers

• holgerkoser
• grolu
• klocke-io

Poem

🐰 A small edit I brought to light,
Two READMEs trimmed to fit just right,
Dates and wording now concise and clear,
November whispers, the end is near 🥕

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title clearly summarizes the main change: correcting the identity chart deprecation notice in documentation.
Description check	✅ Passed	The PR description follows the template structure with categorization, clear explanation of changes, issue reference, and appropriate release note.
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.

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✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch fix/identity-chart-deprecation-notice

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[coderabbitai]

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 `@charts/identity/README.md`:
- Line 5: The sentence "It will be removed without replacement earliest 6 months
after deprecation (around November 2026)." is awkward; update that sentence to
clarify the earliest-removal constraint and expected month, e.g. rephrase to "It
will be removed no earlier than six months after deprecation (approximately
November 2026)." Replace the existing sentence with the clearer wording to make
the timeline explicit and readable.

🪄 Autofix (Beta)

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: defaults

Review profile: CHILL

Plan: Pro

Run ID: 3bdabb52-c4c2-4efe-b607-9fd99e1af889

📥 Commits

Reviewing files that changed from the base of the PR and between f584931 and bb23892.

📒 Files selected for processing (1)

• charts/identity/README.md