[installer] Refresh Android SDK manifest

[jonathanpeppers]

Summary

• add Platform-Tools 37.0.0 and 37.0.1 while retaining older releases
• update Android 37.0 and add Android 37.1, leaving older platform entries unchanged
• add Emulator 37.1.11 from [skill-runner] update-androidsdk-packages: refresh stable SDK packages #12442
• default installer dependencies to Platform-Tools 37.0.1 and Android 37.0

This PR is stacked on #12442.

Testing

• built Xamarin.Installer.Build.Tasks.csproj
• built Xamarin.Installer.AndroidSDK.csproj
• validated the edited XML files

[Copilot]

Pull request overview

Updates the installer-side Android SDK manifest feed and default version properties so the installer can fetch newer Android SDK components (platform-tools and platform APIs) aligned with the repo’s pinned SDK revisions.

Changes:

• Bumps installer defaults to Platform-Tools 37.0.1 and platform android-37.0 (Xamarin.Installer.Common.props).
• Adds Platform-Tools 37.0.0/37.0.1 and Emulator 37.1.11 entries to the d18.0 manifest feed.
• Aligns platform entries with pinned platform revisions, adding Android 37.1 and updating the 33–37 platform package set (including *-ext* platform IDs where applicable).

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated no comments.

File	Description
src/Xamarin.Installer.Build.Tasks/Xamarin.Installer.Common.props	Updates default installer SDK component versions (platform-tools + platform).
src/Xamarin.Installer.AndroidSDK/Feeds/AndroidManifestFeed_d18.0.xml	Refreshes the installer manifest feed with newer platform-tools, emulator, and platform packages/revisions.

Suppressed comments (1)

src/Xamarin.Installer.AndroidSDK/Feeds/AndroidManifestFeed_d18.0.xml:797

• ⚠️ The obsolete="True" marker in this manifest is currently not honored by the XamarinRepository parser: ParseCommonPackageData() reads the path attribute and calls AsBool() instead of reading the obsolete attribute. As a result, changes like marking platforms;android-34 obsolete here won’t actually cause it to be treated as obsolete (and filtered out by default).

Consider fixing src/Xamarin.Installer.AndroidSDK/Xamarin.Installer.AndroidSDK/Xamarin/XamarinRepository.cs to read obsolete (similar to the JDK parsing path) so the manifest’s obsolete flags have the intended effect.

	<platform revision="2" path="platforms;android-34" filesystem-path="platforms/android-34" manifest-url="https://dl.google.com/android/repository/repository2-3.xml" description="Android SDK Platform 34" obsolete="True" preview="False" license="android-sdk-license" original-type="sdk:platformDetailsType" api="34" version="0.0.0" codename="" min-tools-rev="0" layoutlib-api="15" layoutlib-revision="0">