chore(deps): update sonatype/nexus3 docker tag to v3.81.0 (#4110)

* chore(deps): update sonatype/nexus3 docker tag to v3.81.0

* Update app version [skip ci]

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Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>
Co-authored-by: github-action update-app-version <githubaction@githubaction.com>

nexus/3.81.0/docker-compose.yml

@@ -1,6 +1,6 @@
 services:
   nexus:
-    image: sonatype/nexus3:3.80.0
+    image: sonatype/nexus3:3.81.0
     restart: always
     container_name: ${CONTAINER_NAME}
     environment: