MAINT: exclude main class from coverage

Signed-off-by: George Chen <[email protected]>

data-prepper-plugin-schema-cli/build.gradle

@@ -26,4 +26,15 @@ dependencies {
     }
     testImplementation(platform("org.junit:junit-bom:5.9.1"))
     testImplementation("org.junit.jupiter:junit-jupiter")
+}
+
+jacocoTestCoverageVerification {
+    afterEvaluate {
+        classDirectories.from = files(classDirectories.files.collect {
+            fileTree(dir: it, exclude: [
+                    // Exclude main class
+                    'org/opensearch/dataprepper/schemas/DataPrepperPluginSchemaExecute.class'
+            ])
+        })
+    }
 }