Update Gradle dependency : Bump com.pi4j:pi4j-core from 1.4 to 4.0.0

Bumps [com.pi4j:pi4j-core](https://github.com/Pi4J/pi4j) from 1.4 to 4.0.0.
- [Release notes](https://github.com/Pi4J/pi4j/releases)
- [Changelog](https://github.com/Pi4J/pi4j/blob/develop/RELEASE.md)
- [Commits](https://github.com/Pi4J/pi4j/commits/4.0.0)

---
updated-dependencies:
- dependency-name: com.pi4j:pi4j-core
  dependency-version: 4.0.0
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

gradle/libs.versions.toml

@@ -15,7 +15,7 @@ javacan-core = { module = "tel.schich:javacan-core", version.ref = "javacan" }
 javacan-epoll = { module = "tel.schich:javacan-epoll", version.ref = "javacan" }
 junixsocket-common = { module = "com.kohlschutter.junixsocket:junixsocket-common", version.ref = "junixsocket" }
 junixsocket-native-common = { module = "com.kohlschutter.junixsocket:junixsocket-native-common", version.ref = "junixsocket" }
-pi4j-core = { module = "com.pi4j:pi4j-core", version = "1.4" }
+pi4j-core = { module = "com.pi4j:pi4j-core", version = "4.0.0" }
 pure-java-hid-api = { module = "io.github.vveird:purejavahidapi", version = "0.0.3" }
 spring-shell-starter = { module = "org.springframework.shell:spring-shell-starter", version = "3.0.3" }