synchronize: use _find_needle instead

[mnaser]

SUMMARY

It's not possible to use files from a sub role, this patch fixes this.

Fixes #381

ISSUE TYPE

• Bugfix Pull Request

COMPONENT NAME

synchornize

ADDITIONAL INFORMATION

See #381

[softwarefactory-project-zuul]

Build failed.
https://ansible.softwarefactory-project.io/zuul/buildset/d98fe75b98a74d8e88bac6026a45b37e

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[gtirloni]

@tima coud you review this PR?

[jillr]

@mnaser Apologies in the delay getting this reviewed. Would you be willing to add a changelog fragment to this PR?

[softwarefactory-project-zuul]

Build succeeded.
https://ansible.softwarefactory-project.io/zuul/buildset/0653511774424920a0ac9c263d688e70

✔️ ansible-galaxy-importer SUCCESS in 3m 55s
✔️ build-ansible-collection SUCCESS in 6m 58s