Update C# extension to version: 2 (#220)

See sublimehq/Packages#4504

Author: michaelblyons

.github/workflows/syntax.yml

@@ -34,12 +34,12 @@ jobs:
         include:
           - build: latest
             packages: master
-          - build: stable
-            packages: binary
-          - build: 4107
+          # - build: stable
+          #   packages: binary
+          - build: 4204
             packages: binary
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: SublimeText/syntax-test-action@v2
         with:
           build: ${{ matrix.build }}

syntax/embed/C# (for PowerShell).sublime-syntax

@@ -1,40 +1,21 @@
 %YAML 1.2
 ---
 scope: source.cs.embedded.powershell
-# version: 2
+version: 2
 hidden: true
 
 extends: Packages/C#/C#.sublime-syntax
 
 contexts:
 
-  inside_triple_quoted_raw_string_literal_syntax:
-    # <=ST4202
-    - meta_include_prototype: false
-    - include: immediately-pop
-
-  inside_long_string_syntax:
-    # <=ST4202
-    - meta_include_prototype: false
-    - include: immediately-pop
-
-  inside_long_format_string_syntax:
-    # <=ST4202
-    - meta_include_prototype: false
-    - include: immediately-pop
-
   inside_triple_quoted_raw_string_syntax:
     - meta_include_prototype: false
-    - include: immediately-pop
+    - include: immediately_pop
 
   inside_verbatim_string_syntax:
     - meta_include_prototype: false
-    - include: immediately-pop
+    - include: immediately_pop
 
   inside_verbatim_format_string_syntax:
     - meta_include_prototype: false
-    - include: immediately-pop
-
-  immediately-pop:
-    - match: ''
-      pop: 1
+    - include: immediately_pop