Revise release assets for managed deployments via policies #12646

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Feature description

The assets of a GitHub release do not include an ADMX template nor a macOS pList template for the distributed vendor=ownCloud product=ownCloud binaries.

Secondary: there is a second Windows MSI package with "GPO" suffix which is misleading. We usually regularly deploy the non-"GPO" MSI package with both Intune and GPO by setting proper MSI options. A compare between the two MSI packages made with ORCA shows no valuable difference between the two.

Proposed solution

Publish official ADMX templates, OMA-URIs and pList files for the ownCloud released version of ownCloud as release attached assets.

Secondary: drop the misleading ".GPO" suffix from the alternative MSI package.

Alternative solutions you considered

Secondary: drop the alternative "GPO" MSI package entirely and give better documentation on how to deploy the standard one via any Windows application deployment platform (Intune, ConfigMgr, GPO, ecc....)

Additional context

ownCloud Desktop Client 7.1.0 introduced support for configuration via policy. No policy template was provided for supported platforms (Windows, macOS). The existing alternative MSI package with "GPO" suffix become misleading as apparently related to GPO-policy (which is not true).