Bump org.testcontainers:mysql from 1.19.1 to 1.20.2

Bumps [org.testcontainers:mysql](https://github.com/testcontainers/testcontainers-java) from 1.19.1 to 1.20.2.
- [Release notes](https://github.com/testcontainers/testcontainers-java/releases)
- [Changelog](https://github.com/testcontainers/testcontainers-java/blob/main/CHANGELOG.md)
- [Commits](testcontainers/testcontainers-java@1.19.1...1.20.2)

---
updated-dependencies:
- dependency-name: org.testcontainers:mysql
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

build.gradle

@@ -141,7 +141,7 @@ dependencies {
     testImplementation "org.apache.logging.log4j:log4j-core:2.17.2"
 
     // Testcontainers used to mock database
-    testImplementation "org.testcontainers:mysql:1.19.1"
+    testImplementation "org.testcontainers:mysql:1.20.2"
 }
 
 protobuf {