Bump junit-bom from 5.5.0 to 5.5.1 (#154)

Bumps [junit-bom](https://github.com/junit-team/junit5) from 5.5.0 to 5.5.1.
- [Release notes](https://github.com/junit-team/junit5/releases)
- [Commits](junit-team/junit5@r5.5.0...r5.5.1)

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

build.gradle

@@ -58,7 +58,7 @@ configure(subprojects.findAll { !it.name.startsWith("examples/") }) {
         overriddenByDependencies = false
 
         imports {
-            mavenBom 'org.junit:junit-bom:5.5.0'
+            mavenBom 'org.junit:junit-bom:5.5.1'
             mavenBom org.springframework.boot.gradle.plugin.SpringBootPlugin.BOM_COORDINATES
             mavenBom 'org.testcontainers:testcontainers-bom:1.12.0'
             mavenBom 'io.grpc:grpc-bom:1.22.1'