NCSDK-35733: Add A/B sample without merged slots

[tomchy]

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[NordicBuilder]

The following west manifest projects have changed revision in this Pull Request:

Name	Old Revision	New Revision	Diff

✅ All manifest checks OK

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[NordicBuilder]

CI Information

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Build number: 7

Inputs:

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Github labels

Enabled	Name	Description
	ci-disabled	Disable the ci execution
	ci-all-test	Run all of ci, no test spec filtering will be done
	ci-force-downstream	Force execution of downstream even if twister fails
	ci-run-twister	Force run twister
	ci-run-zephyr-twister	Force run zephyr twister

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Toolchain

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Test Spec & Results: ✅ Success; ❌ Failure; 🟠 Queued; 🟡 Progress; ◻️ Skipped; ⚠️ Quarantine

• ❌ Toolchain
• ❌ Build twister
• ❌ Integration tests

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