Upgrade all manifests to v1 manifest format

manifests/m/Mono/Mono/6.12.0.107/Mono.Mono.yaml

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+PackageIdentifier: Mono.Mono
+Publisher: Mono Project
+PackageName: Mono
+Author: Mono Project
+ShortDescription: Mono.Mono
+Description: Sponsored by Microsoft, Mono is an open source implementation of Microsoft's .NET Framework based on the ECMA standards for C# and the Common Language Runtime. A growing family of solutions and an active and enthusiastic contributing community is helping position Mono to become the leading choice for development of cross platform applications.
+Moniker: mono
+Tags:
+- sdk
+- c#
+- ecma
+- clr
+- net
+- dotnet
+FileExtensions:
+- cs
+- exe
+- dll
+PackageUrl: https://www.mono-project.com/
+License: MIT
+LicenseUrl: https://www.mono-project.com/docs/faq/licensing/
+PackageVersion: 6.12.0.107
+InstallerType: msi
+Installers:
+- Architecture: x64
+  InstallerUrl: https://download.mono-project.com/archive/6.12.0/windows-installer/mono-6.12.0.107-x64-0.msi
+  InstallerSha256: 19a7d899e76f0ea33dcfb02cd1efafe0c8592239ad6d03900b3016e6d2ba36ab
+PackageLocale: en-US
+ManifestType: singleton
+ManifestVersion: 1.0.0