Merge pull request github#19650 from tamasvajk/quality/string-concat-loop

Add `cs/string-concatenation-in-loop` to the quality suite

Author: tamasvajk

csharp/ql/integration-tests/posix/query-suite/csharp-code-quality.qls.expected

@@ -11,6 +11,7 @@ ql/csharp/ql/src/Likely Bugs/EqualityCheckOnFloats.ql
 ql/csharp/ql/src/Likely Bugs/ReferenceEqualsOnValueTypes.ql
 ql/csharp/ql/src/Likely Bugs/SelfAssignment.ql
 ql/csharp/ql/src/Likely Bugs/UncheckedCastInEquals.ql
+ql/csharp/ql/src/Performance/StringConcatenationInLoop.ql
 ql/csharp/ql/src/Performance/UseTryGetValue.ql
 ql/csharp/ql/src/Useless code/DefaultToString.ql
 ql/csharp/ql/src/Useless code/IntGetHashCode.ql

csharp/ql/src/Performance/StringConcatenationInLoop.ql

@@ -7,6 +7,7 @@
  * @id cs/string-concatenation-in-loop
  * @tags efficiency
  *       maintainability
+ *       quality
  */
 
 import csharp