[build] Bump Android SDK component versions

[pjcollins]

Context: dotnet/android-tools#218

Changes:

• xamarin/monodroid@44b5ccb0a: Bump external/xamarin-android from 81001af to 2cfcca9
• xamarin/monodroid@0b648bfde: Bump external/android-sdk-installer from 4b2541e to ac2bd9a
• xamarin/monodroid@90cbf0080: Bump tools/msbuild/external/androidtools from dcb3b12 to 352675a
• xamarin/monodroid@fb80e82e6: Bump external/xamarin-android from 1331aa2 to 81001af
• xamarin/monodroid@b042d818a: Bump external/xamarin-android from fff1f4c to 1331aa2

Changes:

• dotnet/android-tools@08a6990 Bump android-sdk NDK version to 26.1.10909125
• dotnet/android-tools@6ae1f2a Bump android-sdk build-tool version to 34.0.0
• dotnet/android-tools@184b6b3 Bump android-sdk cmdline-tools to version 11.0
• dotnet/android-tools@1365e33 Bump android-sdk platforms-tools to version 34.0.5
• dotnet/android-tools@8d38281 Update the maximum NDK version to 26

Updates our recommended Android SDK component versions to the following:

• build-tools 34.0.0
• cmdline-tools 11.0
• platform-tools 34.0.5
• android-ndk 26.1.10909125

All PR test jobs have been updated to use JDK 17, while one nightly test job will remain on JDK 11.

[pjcollins]

Nightly test run: https://devdiv.visualstudio.com/DevDiv/_build/results?buildId=8730839&view=results

[pjcollins]

Nightly is looking good, I think this should be good to go pending latest CI results.