Update actualbudget/actual-server Docker tag to v26.8.1

[renovate]

This PR contains the following updates:

Package	Update	Change
actualbudget/actual-server	minor	26.7.0-alpine → 26.8.1-alpine

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[xRahul]

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📝 Walkthrough

Walkthrough

The Docker Compose configuration updates the actual service image from 26.7.0-alpine to 26.8.1-alpine.

Changes

Actual Server update

Layer / File(s)	Summary
Update Actual service image docker-compose.yml	The actual service now uses actualbudget/actual-server:26.8.1-alpine.

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

Suggested reviewers: xrahul

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
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.
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title clearly and concisely describes the Docker tag update from the changeset.

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