Exclude rvalue references from const in AUTOSAR rule 7-1-1.

cpp/autosar/src/rules/A7-1-1/DeclarationUnmodifiedObjectMissingConstSpecifier.ql

@@ -38,6 +38,7 @@ where
   not exists(LambdaExpression lc | lc.getACapture().getField() = v) and
   not v.isFromUninstantiatedTemplate(_) and
   not v.isCompilerGenerated() and
+  not v.getType() instanceof RValueReferenceType and
   //if the instantiation is not constexpr but the template is, still exclude it as a candidate
   not exists(TemplateVariable b | b.getAnInstantiation() = v and b.isConstexpr())
 select v, "Non-constant variable " + v.getName() + cond + " and is not modified."