Bump org.pcollections:pcollections from 2.1.3 to 4.0.2 (#102)

Bumps [org.pcollections:pcollections](https://github.com/hrldcpr/pcollections) from 2.1.3 to 4.0.2.
- [Changelog](https://github.com/hrldcpr/pcollections/blob/master/CHANGELOG.md)
- [Commits](hrldcpr/pcollections@v2.1.3...v4.0.2)

---
updated-dependencies:
- dependency-name: org.pcollections:pcollections
  dependency-version: 4.0.2
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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Author: dependabot[bot]

pom.xml

@@ -29,7 +29,7 @@
         <dependency>
             <groupId>org.pcollections</groupId>
             <artifactId>pcollections</artifactId>
-            <version>2.1.3</version>
+            <version>4.0.2</version>
         </dependency>
         <dependency>
             <groupId>org.apache.commons</groupId>