Azure pipeline refactor (#12428)

* Skip symbols for Umbraco.Templates

* Resolve some test issues

+ Fixed whitespace dependant tests to pass regardless of build OS vs
run OS.

+ Snap dictionary tests were failing when Configuration was release

+ Removed hardcoded baseUrl from one of the acceptance tests

* Move docfx setup to ./build and fix

* Update UI docs title

* Added dockerfile that can be used when running the acceptance tests.

* Take explicit dependency on System.Security.Cryptography.Pkcs

* Refactor ci/cd pipeline

tests/Umbraco.Tests.UnitTests/Umbraco.PublishedCache.NuCache/SnapDictionaryTests.cs

@@ -564,12 +564,8 @@ namespace Umbraco.Cms.Tests.UnitTests.Umbraco.PublishedCache.NuCache
             GC.Collect();
             await d.CollectAsync();
 
-            // in Release mode, it works, but in Debug mode, the weak reference is still alive
-            // and for some reason we need to do this to ensure it is collected
-#if DEBUG
             GC.Collect();
             await d.CollectAsync();
-#endif
 
             Assert.AreEqual(1, d.SnapCount);
             v2 = s2.Get(1);
@@ -611,12 +607,8 @@ namespace Umbraco.Cms.Tests.UnitTests.Umbraco.PublishedCache.NuCache
             GC.Collect();
             await d.CollectAsync();
 
-            // in Release mode, it works, but in Debug mode, the weak reference is still alive
-            // and for some reason we need to do this to ensure it is collected
-#if DEBUG
             GC.Collect();
             await d.CollectAsync();
-#endif
 
             Assert.AreEqual(1, d.SnapCount);
             v2 = s2.Get(1);