Bump io.github.goooler.shadow from 8.1.7 to 8.1.8

Bumps io.github.goooler.shadow from 8.1.7 to 8.1.8.

---
updated-dependencies:
- dependency-name: io.github.goooler.shadow
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

gradle/libs.versions.toml

@@ -88,6 +88,6 @@ jmh = { id = "me.champeau.jmh", version = "0.7.2" }
 nexusPublish = { id = "io.github.gradle-nexus.publish-plugin", version = "2.0.0" }
 nohttp = { id = "io.spring.nohttp", version = "0.0.11" }
 plantuml = { id = "io.freefair.plantuml", version = "8.6" }
-shadow = { id = "io.github.goooler.shadow", version = "8.1.7" }
+shadow = { id = "io.github.goooler.shadow", version = "8.1.8" }
 spotless = { id = "com.diffplug.spotless", version = "7.0.0.BETA1" }
 versions = { id = "com.github.ben-manes.versions", version = "0.51.0" }