samples: fix sample versions and clean up resource (#2196)

* samples: fix sample versions and clean up resource

* update

* 🦉 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>

Author: mutianf

README.md

@@ -19,7 +19,7 @@ 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>26.25.0</version>
+      <version>26.37.0</version>
       <type>pom</type>
       <scope>import</scope>
     </dependency>
@@ -42,7 +42,7 @@ If you are using Maven without the BOM, add this to your dependencies:
 <dependency>
   <groupId>com.google.cloud</groupId>
   <artifactId>google-cloud-bigtable</artifactId>
-  <version>2.36.0</version>
+  <version>2.37.0</version>
 </dependency>
 
 ```

samples/install-without-bom/pom.xml

@@ -25,13 +25,15 @@
 
 
   <dependencies>
+    <!-- {x-version-update-start:google-cloud-bigtable:released} -->
     <!-- [START bigtable_install_without_bom] -->
     <dependency>
       <groupId>com.google.cloud</groupId>
       <artifactId>google-cloud-bigtable</artifactId>
-      <version>2.36.0</version>
+      <version>2.37.0</version>
     </dependency>
     <!-- [END bigtable_install_without_bom] -->
+    <!-- {x-version-update-end} -->
 
     <dependency>
       <groupId>junit</groupId>

samples/snippets/pom.xml

@@ -23,14 +23,13 @@
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
   </properties>
 
-
   <!-- [START bigtable_install_with_bom] -->
   <dependencyManagement>
     <dependencies>
       <dependency>
         <groupId>com.google.cloud</groupId>
         <artifactId>libraries-bom</artifactId>
-        <version>26.25.0</version>
+        <version>26.37.0</version>
         <type>pom</type>
         <scope>import</scope>
       </dependency>

samples/snippets/src/main/java/com/example/bigtable/InstanceAdminExample.java

@@ -87,6 +87,11 @@ public void run() {
     addCluster();
     deleteCluster();
     deleteInstance();
+    close();
+  }
+
+  // Close the client
+  void close() {
     adminClient.close();
   }
 

samples/snippets/src/main/java/com/example/bigtable/TableAdminExample.java

@@ -108,6 +108,11 @@ public void run() {
     printModifiedColumnFamily();
     deleteColumnFamily();
     deleteTable();
+    close();
+  }
+
+  // Close the client
+  void close() {
     adminClient.close();
   }
 

samples/snippets/src/test/java/com/example/bigtable/InstanceAdminExampleTest.java

@@ -78,6 +78,9 @@ public void after() {
     if (adminClient.exists(instanceId)) {
       adminClient.deleteInstance(instanceId);
     }
+    if (instanceAdmin != null) {
+      instanceAdmin.close();
+    }
   }
 
   @Test

samples/snippets/src/test/java/com/example/bigtable/TableAdminExampleTest.java

@@ -77,6 +77,9 @@ public void after() {
     if (adminClient.exists(tableId)) {
       adminClient.deleteTable(tableId);
     }
+    if (tableAdmin != null) {
+      tableAdmin.close();
+    }
   }
 
   @Test