fix tests

Author: leemthompo

x-pack/plugin/esql/src/test/java/org/elasticsearch/xpack/esql/expression/function/DocsV3SupportTests.java

@@ -312,7 +312,7 @@ public void testRenderingLayoutFromClass() throws Exception {
 
             ## `COUNT` [esql-count]
             ```{applies_to}
-            stack: coming
+            stack: ga 9.1.0
             ```
 
             **Syntax**
@@ -415,7 +415,7 @@ public static class TestClass extends Function {
                     file = "stats",
                     tag = "count-or-null"
                 ) },
-            appliesTo = { @FunctionAppliesTo(lifeCycle = FunctionAppliesToLifecycle.COMING, version = "9.1.0") }
+            appliesTo = { @FunctionAppliesTo(lifeCycle = FunctionAppliesToLifecycle.GA, version = "9.1.0") }
         )
         public TestClass(Source source, @Param(name = "str", type = { "keyword", "text" }, description = """
             String expression. If `null`, the function returns `null`.