Bump org.sonatype.plugins:nexus-staging-maven-plugin from 1.6.8 to 1.7.0 (#32)

Bumps org.sonatype.plugins:nexus-staging-maven-plugin from 1.6.8 to 1.7.0.

---
updated-dependencies:
- dependency-name: org.sonatype.plugins:nexus-staging-maven-plugin
  dependency-version: 1.7.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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Author: dependabot[bot]

pom.xml

@@ -98,7 +98,7 @@
             <plugin>
                 <groupId>org.sonatype.plugins</groupId>
                 <artifactId>nexus-staging-maven-plugin</artifactId>
-                <version>1.6.8</version>
+                <version>1.7.0</version>
                 <extensions>true</extensions>
                 <configuration>
                     <serverId>ossrh</serverId>