Describe the bug

An application with the config-yaml extension prints a warning about Unrecognized configuration file... on Windows, even though the YAML config application.yml is present, recognized and used by the application.

This happens in Quarkus 3.5.0.
Quarkus 3.4.3 is unaffected.

Expected behavior

No [WARNING] [io.quarkus.config] Unrecognized configuration file... in the log.

Actual behavior

...
[INFO] --- quarkus-maven-plugin:3.5.0:build (default) @ config-yaml-windows ---
[WARNING] [io.quarkus.config] Unrecognized configuration file C:\cygwin\home\hudson\reproducers\target\classes\application.yml found; Please, check if your are providing the proper extension to load the file
[INFO] [io.quarkus.deployment.QuarkusAugmentor] Quarkus augmentation completed in 3055ms
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time:  23.469 s
[INFO] Finished at: 2023-11-01T13:55:52+01:00
[INFO] ------------------------------------------------------------------------

How to Reproduce?

git clone -b config-yaml-windows [email protected]:jsmrcka/reproducers.git
mvn -f ./reproducers clean package

Output of uname -a or ver

windows server 2019, windows server 2022

Output of java -version

openjdk version "17.0.7" 2023-04-18 OpenJDK Runtime Environment Temurin-17.0.7+7 (build 17.0.7+7) OpenJDK 64-Bit Server VM Temurin-17.0.7+7 (build 17.0.7+7, mixed mode, sharing)

Quarkus version or git rev

3.5.0

Build tool (ie. output of mvnw --version or gradlew --version)

Apache Maven 3.8.7

Additional information

No response