Make threat model beta notice more general

Author: egregius313

docs/codeql/codeql-language-guides/customizing-library-models-for-java-and-kotlin.rst

@@ -297,7 +297,7 @@ The first four values identify the callable (in this case a method) to be modele
 Threat models
 -------------
 
-.. include:: ../reusables/beta-note-threat-models-java.rst
+.. include:: ../reusables/beta-note-threat-models.rst
 
 A threat model is a named class of dataflow sources that can be enabled or disabled independently. Threat models allow you to control the set of dataflow sources that you want to consider unsafe. For example, one codebase may only consider remote HTTP requests to be tainted, whereas another may also consider data from local files to be unsafe. You can use threat models to ensure that the relevant taint sources are used in a CodeQL analysis.
 

docs/codeql/reusables/beta-note-threat-models-java.rst renamed to docs/codeql/reusables/beta-note-threat-models.rst

@@ -2,4 +2,4 @@
 
     Note
 
-    Threat models are currently in beta and subject to change. During the beta, threat models are supported only by Java analysis.
+    Threat models are currently in beta and subject to change. During the beta, threat models are supported only by Java and C# analysis.