deps: update dependency org.easymock:easymock to v5 (#980)

[![Mend Renovate](https://app.renovatebot.com/images/banner.svg)](https://renovatebot.com)

This PR contains the following updates:

| Package | Change | Age | Adoption | Passing | Confidence |
|---|---|---|---|---|---|
| [org.easymock:easymock](http://easymock.org) ([source](https://togithub.com/easymock/easymock)) | `4.3` -> `5.0.1` | [![age](https://badges.renovateapi.com/packages/maven/org.easymock:easymock/5.0.1/age-slim)](https://docs.renovatebot.com/merge-confidence/) | [![adoption](https://badges.renovateapi.com/packages/maven/org.easymock:easymock/5.0.1/adoption-slim)](https://docs.renovatebot.com/merge-confidence/) | [![passing](https://badges.renovateapi.com/packages/maven/org.easymock:easymock/5.0.1/compatibility-slim/4.3)](https://docs.renovatebot.com/merge-confidence/) | [![confidence](https://badges.renovateapi.com/packages/maven/org.easymock:easymock/5.0.1/confidence-slim/4.3)](https://docs.renovatebot.com/merge-confidence/) |

---

### Configuration

📅 **Schedule**: Branch creation - At any time (no schedule defined), Automerge - At any time (no schedule defined).

🚦 **Automerge**: Disabled by config. Please merge this manually once you are satisfied.

♻ **Rebasing**: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox.

🔕 **Ignore**: Close this PR and you won't be reminded about this update again.

---

 - [ ] <!-- rebase-check -->If you want to rebase/retry this PR, click this checkbox.

---

This PR has been generated by [Mend Renovate](https://www.mend.io/free-developer-tools/renovate/). View repository job log [here](https://app.renovatebot.com/dashboard#github/googleapis/java-core).
<!--renovate-debug:eyJjcmVhdGVkSW5WZXIiOiIzMi4yMzcuMCIsInVwZGF0ZWRJblZlciI6IjMyLjI0MS4xMSJ9-->

Author: renovate-bot

pom.xml

@@ -165,7 +165,7 @@
     <guava.version>31.1-jre</guava.version>
     <junit.version>4.13.2</junit.version>
     <truth.version>1.1.3</truth.version>
-    <easymock.version>4.3</easymock.version>
+    <easymock.version>5.0.1</easymock.version>
     <findbugs.version>3.0.2</findbugs.version>
     <threetenbp.version>1.6.3</threetenbp.version>
     <objenesis.version>3.3</objenesis.version>