Bump org.apache.maven.plugins:maven-enforcer-plugin in /tck

Bumps [org.apache.maven.plugins:maven-enforcer-plugin](https://github.com/apache/maven-enforcer) from 3.0.0-M3 to 3.6.3.
- [Release notes](https://github.com/apache/maven-enforcer/releases)
- [Commits](https://github.com/apache/maven-enforcer/compare/enforcer-3.0.0-M3...enforcer-3.6.3)

---
updated-dependencies:
- dependency-name: org.apache.maven.plugins:maven-enforcer-plugin
  dependency-version: 3.6.3
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

tck/pom.xml

diff --git a/tck/pom.xml b/tck/pom.xml
index 6cd5f0a..1320690 100644
--- a/tck/pom.xml
+++ b/tck/pom.xml
@@ -146,7 +146,7 @@
                 <plugin>
                     <groupId>org.apache.maven.plugins</groupId>
                     <artifactId>maven-enforcer-plugin</artifactId>
-                    <version>3.5.0</version>
+                    <version>3.6.3</version>
                 </plugin>
                 <plugin>
                     <groupId>org.apache.maven.plugins</groupId>

tck/tck-docs/pom.xml

diff --git a/tck/tck-docs/pom.xml b/tck/tck-docs/pom.xml
index eb080ec..ab0496e 100644
--- a/tck/tck-docs/pom.xml
+++ b/tck/tck-docs/pom.xml
@@ -35,7 +35,7 @@
         <status>DRAFT</status>
         <maven.build.timestamp.format>MMMM dd, yyyy</maven.build.timestamp.format>
         <technology.version>2.2</technology.version>
-        <maven-enforcer-plugin.version>3.0.0-M3</maven-enforcer-plugin.version>
+        <maven-enforcer-plugin.version>3.6.3</maven-enforcer-plugin.version>
         <maven-assembly-plugin.version>3.3.0</maven-assembly-plugin.version>
         <maven-resources-plugin.version>3.3.1</maven-resources-plugin.version>
     </properties>