Upgrade dependencies (#17)

        * log4j upgraded to 2.16.0
	* Geode deps upgraded to 1.12.6
	* surefire upgraded to 2.19.1
diff --git a/pom.xml b/pom.xml
index 1d279b2..42b12ae 100644
--- a/pom.xml
+++ b/pom.xml
@@ -34,11 +34,11 @@
     <version>1.0-SNAPSHOT</version>
 
     <properties>
-        <geode.core.version>1.9.0</geode.core.version>
-        <geode.cq.version>1.9.0</geode.cq.version>
-        <geode.dunit.version>1.9.0</geode.dunit.version>
+        <geode.core.version>1.12.6</geode.core.version>
+        <geode.cq.version>1.12.6</geode.cq.version>
+        <geode.dunit.version>1.12.6</geode.dunit.version>
         <kafka.connect-api.version>2.3.1</kafka.connect-api.version>
-        <log4j.version>2.13.0</log4j.version>
+        <log4j.version>2.16.0</log4j.version>
         <kafka_2.12.version>2.3.1</kafka_2.12.version>
         <curator-framework.version>4.2.0</curator-framework.version>
         <kafka-streams-test-utils.version>1.1.0</kafka-streams-test-utils.version>
@@ -51,6 +51,7 @@
         <zookeeper.version>3.5.7</zookeeper.version>
         <spotless.version>1.27.0</spotless.version>
         <rat.version>0.13</rat.version>
+        <surefire.version>2.19.1</surefire.version>
         <confluent.maven.repo>http://packages.confluent.io/maven/</confluent.maven.repo>
     </properties>
 
@@ -167,6 +168,11 @@
     <build>
         <plugins>
             <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-surefire-plugin</artifactId>
+                <version>${surefire.version}</version>
+            </plugin>
+            <plugin>
                 <groupId>com.diffplug.spotless</groupId>
                 <artifactId>spotless-maven-plugin</artifactId>
                 <version>${spotless.version}</version>