[SPARK-30142][TEST-MAVEN][BUILD] Upgrade Maven to 3.6.3

### What changes were proposed in this pull request?

This PR aims to upgrade Maven from 3.6.2 to 3.6.3.

### Why are the changes needed?

This will bring bug fixes like the following.
- MNG-6759 Maven fails to use <repositories> section from dependency when resolving transitive dependencies in some cases
- MNG-6760 ExclusionArtifactFilter result invalid when wildcard exclusion is followed by other exclusions

The following is the full release note.
- https://maven.apache.org/docs/3.6.3/release-notes.html

### Does this PR introduce any user-facing change?

No. (This is a dev-environment change.)

### How was this patch tested?

Pass the Jenkins with both SBT and Maven.

Closes apache#26770 from dongjoon-hyun/SPARK-30142.

Authored-by: Dongjoon Hyun <[email protected]>
Signed-off-by: HyukjinKwon <[email protected]>

Author: dongjoon-hyun

dev/appveyor-install-dependencies.ps1

@@ -81,7 +81,7 @@ if (!(Test-Path $tools)) {
 # ========================== Maven
 Push-Location $tools
 
-$mavenVer = "3.6.2"
+$mavenVer = "3.6.3"
 Start-FileDownload "https://archive.apache.org/dist/maven/maven-3/$mavenVer/binaries/apache-maven-$mavenVer-bin.zip" "maven.zip"
 
 # extract

docs/building-spark.md

@@ -27,7 +27,7 @@ license: |
 ## Apache Maven
 
 The Maven-based build is the build of reference for Apache Spark.
-Building Spark using Maven requires Maven 3.6.2 and Java 8.
+Building Spark using Maven requires Maven 3.6.3 and Java 8.
 Spark requires Scala 2.12; support for Scala 2.11 was removed in Spark 3.0.0.
 
 ### Setting up Maven's Memory Usage

pom.xml

@@ -118,7 +118,7 @@
     <java.version>1.8</java.version>
     <maven.compiler.source>${java.version}</maven.compiler.source>
     <maven.compiler.target>${java.version}</maven.compiler.target>
-    <maven.version>3.6.2</maven.version>
+    <maven.version>3.6.3</maven.version>
     <sbt.project.name>spark</sbt.project.name>
     <slf4j.version>1.7.16</slf4j.version>
     <log4j.version>1.2.17</log4j.version>