Bump jna from 5.11.0 to 5.12.1 in /buildSrc

Bumps [jna](https://github.com/java-native-access/jna) from 5.11.0 to 5.12.1.
- [Release notes](https://github.com/java-native-access/jna/releases)
- [Changelog](https://github.com/java-native-access/jna/blob/master/CHANGES.md)
- [Commits](java-native-access/jna@5.11.0...5.12.1)

---
updated-dependencies:
- dependency-name: net.java.dev.jna:jna
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

buildSrc/build.gradle

@@ -110,7 +110,7 @@ dependencies {
   api 'com.netflix.nebula:gradle-info-plugin:11.3.3'
   api 'org.apache.rat:apache-rat:0.13'
   api 'commons-io:commons-io:2.7'
-  api "net.java.dev.jna:jna:5.11.0"
+  api "net.java.dev.jna:jna:5.12.1"
   api 'gradle.plugin.com.github.johnrengelman:shadow:7.1.2'
   api 'org.jdom:jdom2:2.0.6.1'
   api 'org.jetbrains.kotlin:kotlin-stdlib-jdk8:1.7.10'