docs: relax the tests for face / person detection (#381)

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Fixes #<issue_number_goes_here> 🦕

video-intelligence/system-test/analyze_face_detection.test.js

@@ -26,6 +26,6 @@ const file = 'resources/googlework_short.mp4';
 describe('analyzing faces in video', () => {
   it('should identify faces in a local file', async () => {
     const output = execSync(`${cmd} ${file}`);
-    assert.match(output, /glasses/);
+    assert.match(output, /Attribute/);
   });
 });

video-intelligence/system-test/analyze_face_detection_gcs.test.js

@@ -26,6 +26,6 @@ const gcsUri = 'gs://cloud-samples-data/video/googlework_short.mp4';
 describe('analyzing faces in video', () => {
   it('should identify faces in a file in Google Storage', async () => {
     const output = execSync(`${cmd} ${gcsUri}`);
-    assert.match(output, /glasses/);
+    assert.match(output, /Attribute/);
   });
 });

video-intelligence/system-test/analyze_person_detection.test.js

@@ -26,6 +26,6 @@ const file = 'resources/googlework_short.mp4';
 describe('analyzing people in video', () => {
   it('should identify people in a local file', async () => {
     const output = execSync(`${cmd} ${file}`);
-    assert.match(output, /Hair/);
+    assert.match(output, /Landmark/);
   });
 });

video-intelligence/system-test/analyze_person_detection_gcs.test.js

@@ -26,6 +26,6 @@ const gcsUri = 'gs://cloud-samples-data/video/googlework_short.mp4';
 describe('analyzing people in video', () => {
   it('should identify people in a file in Google Storage', async () => {
     const output = execSync(`${cmd} ${gcsUri}`);
-    assert.match(output, /Hair/);
+    assert.match(output, /Landmark/);
   });
 });