Bump th2-plugin from 0.3.14 to 0.3.15

Bumps `th2-plugin` from 0.3.14 to 0.3.15.

Updates `com.exactpro.th2.gradle.publish` from 0.3.14 to 0.3.15
- [Release notes](https://github.com/th2-net/th2-gradle-plugin/releases)
- [Commits](th2-net/th2-gradle-plugin@0.3.14...0.3.15)

Updates `com.exactpro.th2.gradle.component` from 0.3.14 to 0.3.15
- [Release notes](https://github.com/th2-net/th2-gradle-plugin/releases)
- [Commits](th2-net/th2-gradle-plugin@0.3.14...0.3.15)

---
updated-dependencies:
- dependency-name: com.exactpro.th2.gradle.publish
  dependency-version: 0.3.15
  dependency-type: direct:production
  update-type: version-update:semver-patch
- dependency-name: com.exactpro.th2.gradle.component
  dependency-version: 0.3.15
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

gradle/libs.versions.toml

@@ -1,5 +1,5 @@
 [versions]
-th2-plugin = "0.3.14"
+th2-plugin = "0.3.15"
 cradle = "5.7.1-dev"
 
 [libraries]