fix: vision test failures (#9172)

Fixes #8779 
Fixes #8829

Author: kweinmeister

vision/AUTHORING_GUIDE.md

@@ -1 +1 @@
-See https://github.com/GoogleCloudPlatform/python-docs-samples/blob/main/AUTHORING_GUIDE.md
+See <https://github.com/GoogleCloudPlatform/python-docs-samples/blob/main/AUTHORING_GUIDE.md>

vision/CONTRIBUTING.md

@@ -1 +1 @@
-See https://github.com/GoogleCloudPlatform/python-docs-samples/blob/main/CONTRIBUTING.md
+See <https://github.com/GoogleCloudPlatform/python-docs-samples/blob/main/CONTRIBUTING.md>

vision/snippets/detect/detect_test.py

@@ -13,6 +13,7 @@
 # limitations under the License.
 
 import os
+import re
 import uuid
 
 import backoff
@@ -165,7 +166,7 @@ def run_sample():
 
     run_sample()
     out, _ = capsys.readouterr()
-    assert 'best guess label: palace of fine arts' in out.lower()
+    assert re.search(r'best guess label:.*palace of fine arts', out, re.DOTALL | re.I)
 
 
 def test_detect_web_uri(capsys):
@@ -178,7 +179,7 @@ def run_sample():
 
     run_sample()
     out, _ = capsys.readouterr()
-    assert 'best guess label: palace of fine arts' in out.lower()
+    assert re.search(r'best guess label:.*palace of fine arts', out, re.DOTALL | re.I)
 
 
 def test_detect_web_with_geo(capsys):