Bump pl.allegro.tech.build.axion-release from 1.18.13 to 1.18.15 (#861)

Bumps [pl.allegro.tech.build.axion-release](https://github.com/allegro/axion-release-plugin) from 1.18.13 to 1.18.15.
- [Release notes](https://github.com/allegro/axion-release-plugin/releases)
- [Commits](v1.18.13...v1.18.15)

---
updated-dependencies:
- dependency-name: pl.allegro.tech.build.axion-release
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

build.gradle.kts

@@ -5,7 +5,7 @@ plugins {
     signing
     jacoco
     idea
-    id("pl.allegro.tech.build.axion-release") version "1.18.13"
+    id("pl.allegro.tech.build.axion-release") version "1.18.15"
     id("com.gradle.plugin-publish") version "1.3.0"
     id("io.github.gradle-nexus.publish-plugin") version "2.0.0"
     id("com.coditory.integration-test") version "1.4.5"