Fix encoding issue when platform encoding is not UTF-8 (#230)

GitOrigin-RevId: c9fd868f2c5889c442a06d1c590cd9eb6e3c69a4

Author: henryju

python-checks/src/main/java/org/sonar/python/checks/HardcodedCredentialsCallCheck.java

@@ -20,6 +20,7 @@
 import com.google.gson.JsonSyntaxException;
 import java.io.IOException;
 import java.io.InputStreamReader;
+import java.nio.charset.StandardCharsets;
 import java.util.List;
 import java.util.Map;
 import java.util.Objects;
@@ -180,7 +181,7 @@ private Map<String, CredentialMethod> load() {
     private CredentialMethod[] loadMethodsFromResource(String resourcePath) {
       try (var is = HardcodedCredentialsCallCheck.class.getResourceAsStream(resourcePath)) {
         return Optional.ofNullable(is)
-          .map(InputStreamReader::new)
+          .map(i -> new InputStreamReader(i, StandardCharsets.UTF_8))
           .map(reader -> gson.fromJson(reader, CredentialMethod[].class))
           .orElseThrow(() -> new IllegalStateException("Unable to open resource: " + resourcePath));
       } catch (IOException | JsonSyntaxException e) {