#268 ci: use a valid pull-request-branch-name separator in dependabot config

[RAprogramm]

Closes #268

The Dependabot config check still failed after #267:

The property '#/updates/0/pull-request-branch-name/separator' value "/-" did not match one of the following values: -, /, _

"/-" was never a valid separator; Dependabot fell back to the default /, which is what existing branches already use. Setting / explicitly keeps branch naming unchanged and makes the file schema-valid.

Verified locally: the whole file validates against the official Dependabot 2.0 JSON schema with zero errors; zizmor and actionlint unchanged.

Summary by CodeRabbit

• Chores
  • Updated automated dependency update branch naming for Cargo and GitHub Actions changes.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro Plus

Run ID: 613160a7-1816-4786-9bd3-bbdec6f42030

📥 Commits

Reviewing files that changed from the base of the PR and between 4fe7dad and da06f11.

📒 Files selected for processing (1)

• .github/dependabot.yml

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📝 Walkthrough

Walkthrough

The Dependabot configuration changes the Cargo and GitHub Actions branch-name separator from /- to /. This makes both values valid under the Dependabot schema.

Changes

Dependabot configuration

Layer / File(s)	Summary
Update branch-name separators .github/dependabot.yml	The Cargo and GitHub Actions update entries now use / as the pull-request branch-name separator.

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

Merge Risk: ⚪ Minimal · up to da06f

This localized configuration change makes the Dependabot branch separator schema-valid while preserving existing branch naming, so no actionable merge-blocking risk remains after normal checks and review.

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title clearly identifies the Dependabot separator correction and its purpose.
Linked Issues check	✅ Passed	The change replaces "/-" with "/", preserves branch naming, and addresses the schema validation failure described in issue [#268].
Out of Scope Changes check	✅ Passed	The changes are limited to the two Dependabot separator updates required by issue [#268].
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check. Docstring coverage is scoped to functions touched by this diff. Analyzed 0 functions across 0 files. (1 skipped: 1 unsupported.)

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch 268

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.

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