[KYUUBI #694] Upgrade Scala to 2.12.14

### _How was this patch tested?_
- [ ] Add some test cases that check the changes thoroughly including negative and positive cases if possible

- [ ] Add screenshots for manual tests if appropriate

- [x] [Run test](https://kyuubi.readthedocs.io/en/latest/tools/testing.html#running-tests) locally before make a pull request

Closes #721 from wuchunfu/694.

Closes #694

10b6774a [wuchunfu] [KYUUBI #694] replace dev/dependencyList
efafeab5 [wuchunfu] [KYUUBI #694] Upgrade Scala to 2.12.14

Authored-by: wuchunfu <319355703@qq.com>
Signed-off-by: Kent Yao <yao@apache.org>

dev/dependencyList

@@ -47,7 +47,7 @@ metrics-core/4.1.1//metrics-core-4.1.1.jar
 metrics-jmx/4.1.1//metrics-jmx-4.1.1.jar
 metrics-json/4.1.1//metrics-json-4.1.1.jar
 metrics-jvm/4.1.1//metrics-jvm-4.1.1.jar
-scala-library/2.12.10//scala-library-2.12.10.jar
+scala-library/2.12.14//scala-library-2.12.14.jar
 simpleclient/0.10.0//simpleclient-0.10.0.jar
 simpleclient_common/0.10.0//simpleclient_common-0.10.0.jar
 simpleclient_dropwizard/0.10.0//simpleclient_dropwizard-0.10.0.jar

pom.xml

@@ -59,7 +59,7 @@
     <properties>
         <java.version>1.8</java.version>
         <maven.version>3.6.3</maven.version>
-        <scala.version>2.12.10</scala.version>
+        <scala.version>2.12.14</scala.version>
         <scala.binary.version>2.12</scala.binary.version>
 
         <codahale.metrics.version>4.1.1</codahale.metrics.version>
@@ -109,7 +109,7 @@
         <maven.plugin.clean.version>3.1.0</maven.plugin.clean.version>
         <maven.plugin.scalastyle.version>1.0.0</maven.plugin.scalastyle.version>
         <maven.plugin.download.version>1.6.0</maven.plugin.download.version>
-        <maven.plugin.silencer.version>1.6.0</maven.plugin.silencer.version>
+        <maven.plugin.silencer.version>1.7.5</maven.plugin.silencer.version>
         <maven.plugin.rat.version>0.13</maven.plugin.rat.version>
 
         <!-- Needed for consistent times -->