build(deps): bump org.junit:junit-bom from 6.0.2 to 6.0.3

Bumps [org.junit:junit-bom](https://github.com/junit-team/junit-framework) from 6.0.2 to 6.0.3.
- [Release notes](https://github.com/junit-team/junit-framework/releases)
- [Commits](junit-team/junit-framework@r6.0.2...r6.0.3)

---
updated-dependencies:
- dependency-name: org.junit:junit-bom
  dependency-version: 6.0.3
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

checker/build.gradle

@@ -19,7 +19,7 @@ dependencies {
     implementation project(':framework')
     implementation "io.github.eisop:checker-qual:${versions.eisopVersion}"
 
-    testImplementation platform('org.junit:junit-bom:6.0.2')
+    testImplementation platform('org.junit:junit-bom:6.0.3')
     testRuntimeOnly 'org.junit.platform:junit-platform-launcher'
     testImplementation 'org.junit.jupiter:junit-jupiter'
     testImplementation project(':test-utils')

test-utils/build.gradle

@@ -4,6 +4,6 @@ plugins {
 
 dependencies {
     api project(':framework')
-    api platform('org.junit:junit-bom:6.0.2')
+    api platform('org.junit:junit-bom:6.0.3')
     api 'org.junit.jupiter:junit-jupiter'
 }