[profiled-aot] update profile for .NET 8 GA (#8428)

First, I had to update the URL we test, because it was down:

https://httpstat.us/200

Instead, I used:

https://httpbin.org/status/200

Next, after reviewing the latest methods in the profile, I noticed a
lot of timezone logic was completely removed. This might be related
to different cookies returns from the new URL, not sure.

I added a `DateTime.Now` call to `CommonMethods.cs`, to ensure the
timezone logic is in the AOT profile.

Testing a `dotnet new android` app on a Pixel 5, an average of 10 runs
of the "displayed time`:

	Average(ms): 179.1
	Std Err(ms): 2.53179778023443
	Std Dev(ms): 8.00624756049924

src/profiled-aot/CommonMethods.cs

@@ -1,5 +1,6 @@
 // This class represents common code paths we always want to AOT
 
+// DateTime.Now
 // string interpolation & split
 // int.Parse(), int.ToString()
 // Culture-aware string comparisons
@@ -15,8 +16,11 @@ static class CommonMethods
     // Returns '200 OK' if the caller wants to set that on the UI
     public static async Task<string> Invoke()
     {
-        var url = $"https://httpstat.us/{200}";
+        // NOTE: alternate web services if one of these is down
+        //var url = $"https://httpstat.us/{200}";
+        var url = $"https://httpbin.org/status/{200}";
 
+        var now = DateTime.Now;
         var foo = "foo";
         foo.StartsWith("f");
         foo.Contains("o");