Bump nexus-staging-maven-plugin from 1.6.8 to 1.6.11 (#393)

Bumps nexus-staging-maven-plugin from 1.6.8 to 1.6.11.

---
updated-dependencies:
- dependency-name: org.sonatype.plugins:nexus-staging-maven-plugin
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

pom.xml

@@ -87,7 +87,7 @@
         <maven-gpg-plugin.version>3.0.1</maven-gpg-plugin.version>
         <maven-scm-plugin.version>1.12.2</maven-scm-plugin.version>
         <maven-release-plugin.version>2.5.3</maven-release-plugin.version>
-        <nexus-staging-maven-plugin.version>1.6.8</nexus-staging-maven-plugin.version>
+        <nexus-staging-maven-plugin.version>1.6.11</nexus-staging-maven-plugin.version>
         <license-maven-plugin.version>4.1</license-maven-plugin.version>
         <jacoco-maven-plugin.version>0.8.7</jacoco-maven-plugin.version>
         <coveralls-maven-plugin.version>4.3.0</coveralls-maven-plugin.version>