update slf4j version

Author: mutianf

bigtable-dataflow-parent/bigtable-hbase-beam/pom.xml

@@ -49,7 +49,7 @@ limitations under the License.
       <dependency>
         <groupId>org.slf4j</groupId>
         <artifactId>slf4j-api</artifactId>
-        <version>1.7.33</version>
+        <version>2.0.16</version>
       </dependency>
 
     </dependencies>