[Policy] Fix os_release_name value

[eric-desrochers]

OS_RELEASE_NAME was previously matching PRETTY_NAME instead of the intended NAME identifier. This could cause incorrect OS validation and defaulting to the "Upstream Project:" instead.

Adjusted the logic to correctly validate OS identifiers and prevent falling back to default unexpectedly.

$ grep NAME /etc/os-release
NAME="Azure Linux"
PRETTY_NAME="Microsoft Azure Linux 3.0"

---

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[packit-as-a-service]

Congratulations! One of the builds has completed. 🍾

You can install the built RPMs by following these steps:

• sudo dnf install -y 'dnf*-command(copr)'
• dnf copr enable packit/sosreport-sos-4269
• And now you can install the packages.

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