Upgrade all manifests to v1 manifest format

manifests/a/ArloG/StrixMusic/1.4.7.0/ArloG.StrixMusic.yaml

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+PackageIdentifier: ArloG.StrixMusic
+PackageVersion: 1.4.7.0
+PackageName: Strix Music
+Publisher: Arlo G.
+License: custom
+Moniker: strix
+Tags:
+- spotify
+- music
+ShortDescription: A UWP Spotify client
+Installers:
+- Architecture: neutral
+  InstallerUrl: https://arlodotappx.blob.core.windows.net/strixmusicstable/59553ArloG.StrixMusicBeta_1.4.7.0_neutral___gzh7hvbrgycb4.AppxBundle
+  InstallerSha256: 5694F2DC160969A495AA528FFF318DA416FFF2862B6509C55D7A8D0F9B5A0EA7
+  InstallerType: msix
+PackageLocale: en-US
+ManifestType: singleton
+ManifestVersion: 1.0.0

manifests/a/ArloG/StrixMusic/1.4.8.0/ArloG.StrixMusic.yaml

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+PackageIdentifier: ArloG.StrixMusic
+PackageVersion: 1.4.8.0
+PackageName: Strix Music
+Publisher: Arlo G.
+License: custom
+Moniker: strix
+Tags:
+- spotify
+- music
+ShortDescription: A UWP Spotify client
+Installers:
+- Architecture: neutral
+  InstallerUrl: https://arlodotappx.blob.core.windows.net/strixmusicstable/59553ArloG.StrixMusicBeta_1.4.8.0_neutral___gzh7hvbrgycb4.AppxBundle
+  InstallerSha256: 68cb0e1192c492e8aafa72775e6bf7288c6c9e55b776220bc23b691b192f8889
+  InstallerType: msix
+PackageLocale: en-US
+ManifestType: singleton
+ManifestVersion: 1.0.0

manifests/a/ArloG/StrixMusic/1.4.9.0/ArloG.StrixMusic.yaml

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+PackageIdentifier: ArloG.StrixMusic
+PackageVersion: 1.4.9.0
+PackageName: Strix Music
+Publisher: Arlo G.
+License: custom
+Moniker: strix
+Tags:
+- spotify
+- music
+ShortDescription: A UWP Spotify client
+Installers:
+- Architecture: neutral
+  InstallerUrl: https://arlodotappx.blob.core.windows.net/strixmusicstable/59553ArloG.StrixMusicBeta_1.4.9.0_neutral___gzh7hvbrgycb4.AppxBundle
+  InstallerSha256: 0a9f145c02d7688f547eee3e1e4c05c33bfd521fcdfec3cfe295078a8c01372b
+  InstallerType: msix
+PackageLocale: en-US
+ManifestType: singleton
+ManifestVersion: 1.0.0