fix: lenient vision face annotation results (#9947)

* fix: lenient vision face annotation results

* 🦉 Updates from OwlBot post-processor

See https://github.com/googleapis/repo-automation-bots/blob/main/packages/owl-bot/README.md

---------

Co-authored-by: Owl Bot <gcf-owl-bot[bot]@users.noreply.github.com>

java-vision/README.md

@@ -20,7 +20,7 @@ If you are using Maven with [BOM][libraries-bom], add this to your pom.xml file:
     <dependency>
       <groupId>com.google.cloud</groupId>
       <artifactId>libraries-bom</artifactId>
-      <version>26.23.0</version>
+      <version>26.24.0</version>
       <type>pom</type>
       <scope>import</scope>
     </dependency>

java-vision/google-cloud-vision/src/test/java/com/google/cloud/vision/it/ITSystemTest.java

@@ -292,7 +292,7 @@ public void detectFacesTest() throws IOException {
     AnnotateImageResponse res =
         requestAnnotatedImage("face_no_surprise.jpg", Type.FACE_DETECTION, false);
     for (FaceAnnotation annotation : assertNotEmpty(res, res.getFaceAnnotationsList())) {
-      assertEquals(Likelihood.LIKELY, annotation.getAngerLikelihood());
+      assertThat(annotation.getAngerLikelihood()).isAnyOf(Likelihood.LIKELY, Likelihood.POSSIBLE);
       assertEquals(Likelihood.VERY_UNLIKELY, annotation.getJoyLikelihood());
       assertEquals(Likelihood.LIKELY, annotation.getSurpriseLikelihood());
     }
@@ -303,7 +303,7 @@ public void detectFacesGcsTest() throws IOException {
     AnnotateImageResponse res =
         requestAnnotatedImage("face/face_no_surprise.jpg", Type.FACE_DETECTION, true);
     for (FaceAnnotation annotation : assertNotEmpty(res, res.getFaceAnnotationsList())) {
-      assertEquals(Likelihood.LIKELY, annotation.getAngerLikelihood());
+      assertThat(annotation.getAngerLikelihood()).isAnyOf(Likelihood.LIKELY, Likelihood.POSSIBLE);
       assertEquals(Likelihood.VERY_UNLIKELY, annotation.getJoyLikelihood());
       assertEquals(Likelihood.LIKELY, annotation.getSurpriseLikelihood());
     }