Add applies to to ScalB function in elastic#127696

Author: leemthompo

docs/reference/query-languages/esql/_snippets/functions/layout/scalb.md

@@ -20,6 +20,8 @@
 import org.elasticsearch.xpack.esql.core.type.DataType;
 import org.elasticsearch.xpack.esql.core.util.NumericUtils;
 import org.elasticsearch.xpack.esql.expression.function.Example;
+import org.elasticsearch.xpack.esql.expression.function.FunctionAppliesTo;
+import org.elasticsearch.xpack.esql.expression.function.FunctionAppliesToLifecycle;
 import org.elasticsearch.xpack.esql.expression.function.FunctionInfo;
 import org.elasticsearch.xpack.esql.expression.function.Param;
 import org.elasticsearch.xpack.esql.expression.function.scalar.EsqlScalarFunction;
@@ -40,11 +42,16 @@ public class Scalb extends EsqlScalarFunction {
     private final Expression d;
     private final Expression scaleFactor;
 
-    @FunctionInfo(returnType = "double", description = """
-        Returns the result of `d * 2 ^ scaleFactor`,
-        Similar to Java's `scalb` function. Result is rounded as if
-        performed by a single correctly rounded floating-point multiply
-        to a member of the double value set.""", examples = @Example(file = "floats", tag = "scalb"))
+    @FunctionInfo(
+        returnType = "double",
+        description = """
+            Returns the result of `d * 2 ^ scaleFactor`,
+            Similar to Java's `scalb` function. Result is rounded as if
+            performed by a single correctly rounded floating-point multiply
+            to a member of the double value set.""",
+        examples = @Example(file = "floats", tag = "scalb"),
+        appliesTo = { @FunctionAppliesTo(lifeCycle = FunctionAppliesToLifecycle.GA, version = "9.1.0") }
+    )
 
     public Scalb(
         Source source,