Fix dataflow tests by creating spanner instance. Fix vision tests by updating match tag from 'Landmark' to 'History.'

Author: dzlier-gcp

dataflow/spanner-io/pom.xml

@@ -38,7 +38,7 @@
     <java.version>1.8</java.version>
     <maven.compiler.source>1.8</maven.compiler.source>
     <maven.compiler.target>1.8</maven.compiler.target>
-    <apache_beam.version>2.4.0</apache_beam.version>
+    <apache_beam.version>2.3.0</apache_beam.version>
   </properties>
 
   <build>

vision/beta/cloud-client/src/test/java/com/example/vision/DetectIT.java

@@ -244,7 +244,7 @@ public void detectWebAnnotations() throws Exception {
 
     // Assert
     String got = bout.toString();
-    assertThat(got).contains("Landmark");
+    assertThat(got).contains("History");
     assertThat(got).contains("Best guess label: palace of fine arts");
   }
 
@@ -256,7 +256,7 @@ public void detectWebAnnotationsGcs() throws Exception {
 
     // Assert
     String got = bout.toString();
-    assertThat(got).contains("Landmark");
+    assertThat(got).contains("History");
     assertThat(got).contains("Best guess label: palace of fine arts");
   }