Add dagger.Subcomponent.Factory to the list of classes where qualifier may be allowed.

This replaces `dagger.Subcomponent.Builder.Factory` which does not exist, and which may have been a typo?

Subcomponent Factory methods typically have parameters annotated with `@BindsInstance` to bind parameters, and as such, primitives like booleans often need additional qualifier annotations.

PiperOrigin-RevId: 789429021

Author: java-team-github-bot

core/src/main/java/com/google/errorprone/bugpatterns/UnnecessaryQualifier.java

@@ -213,7 +213,7 @@ private static ImmutableList<AnnotationTree> getQualifiers(
           "dagger.Component.Factory",
           "dagger.Subcomponent",
           "dagger.Subcomponent.Builder",
-          "dagger.Subcomponent.Builder.Factory",
+          "dagger.Subcomponent.Factory",
           "dagger.hilt.EntryPoint",
           "dagger.producers.ProductionComponent",
           "dagger.producers.ProductionComponent.Builder",

core/src/test/java/com/google/errorprone/bugpatterns/UnnecessaryQualifierTest.java

@@ -195,6 +195,23 @@ interface Builder {
         .doTest();
   }
 
+  @Test
+  public void exemptedClassAnnotation_subcomponentFactory_noFinding() {
+    helper
+        .addSourceLines(
+            "Test.java",
+            """
+            import dagger.BindsInstance;
+            import dagger.Subcomponent;
+
+            @Subcomponent.Factory
+            interface Factory {
+              Object create(@BindsInstance @Qual boolean isEnabled);
+            }
+            """)
+        .doTest();
+  }
+
   @Test
   public void lambdas_neverMeaningful() {
     helper