Bump assertj-core from 3.12.1 to 3.12.2 in /modules/pulsar (#1312)

Bumps [assertj-core](https://github.com/joel-costigliola/assertj-core) from 3.12.1 to 3.12.2.
<details>
<summary>Commits</summary>

- [`5dd7fac`](assertj/assertj@5dd7fac) [maven-release-plugin] prepare release assertj-core-3.12.2
- [`d427863`](assertj/assertj@d427863) Update Guava test dependency to version 27.1-jre.
- [`cb5b285`](assertj/assertj@cb5b285) anySatisfy (Maps): do not continue evaluating elements once we found a match ...
- [`8d83c41`](assertj/assertj@8d83c41) Ignore static methods when finding property accessors. Fixes [#1458](https://github-redirect.dependabot.com/joel-costigliola/assertj-core/issues/1458)
- [`b600f5b`](assertj/assertj@b600f5b) Use URI#create (which does not throw a checked Exception) in tests.
- [`91af5c9`](assertj/assertj@91af5c9) [maven-release-plugin] prepare for next development iteration
- See full diff in [compare view](assertj/assertj@assertj-core-3.12.1...assertj-core-3.12.2)
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modules/pulsar/build.gradle

@@ -4,5 +4,5 @@ dependencies {
     compile project(':testcontainers')
 
     testCompile group: 'org.apache.pulsar', name: 'pulsar-client', version: '2.3.0'
-    testCompile group: 'org.assertj', name: 'assertj-core', version: '3.12.1'
+    testCompile group: 'org.assertj', name: 'assertj-core', version: '3.12.2'
 }