Bump to xamarin/android-api-docs@3f64bdd (#8539)

Changes: xamarin/android-api-docs@2d3e40a...3f64bdd

	% git diff --shortstat 2d3e40ac...3f64bdd7
	 9088 files changed, 845453 insertions(+), 87347 deletions(-)

  * xamarin/android-api-docs@3f64bdd79: Import documentation for API-34 (xamarin/android-api-docs#52)

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>