address minor linter warnings

Author: Ushcode

stack-clients/src/main/java/com/cmclinnovations/stack/clients/core/StackHost.java

@@ -105,6 +105,7 @@ public String build() {
             return toString();
         }
 
+        @Override
         public String toString() {
             try {
                 // Build the path

stack-clients/src/test/java/com/cmclinnovations/stack/clients/utils/FileUtilsTest.java

@@ -93,6 +93,7 @@ void listFilesFromJarFiltered() throws IOException, URISyntaxException {
         Assertions.assertEquals(expectedURIs, FileUtils.listFiles(dirURL, ".txt"));
     }
 
+    @SuppressWarnings("unused")
     private static Stream<Arguments> fixSlashesTestProvider() throws IOException {
         return Stream.of(
                 Arguments.of("/", "", true, true),