Bump io.smallrye.config:smallrye-config from 3.14.1 to 3.15.0 (#3264)

Bumps [io.smallrye.config:smallrye-config](https://github.com/smallrye/smallrye-config) from 3.14.1 to 3.15.0.
- [Release notes](https://github.com/smallrye/smallrye-config/releases)
- [Commits](smallrye/smallrye-config@3.14.1...3.15.0)

---
updated-dependencies:
- dependency-name: io.smallrye.config:smallrye-config
  dependency-version: 3.15.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

pom.xml

@@ -72,7 +72,7 @@
     <microprofile-metrics-api.version>4.0.1</microprofile-metrics-api.version>
     <microprofile-health-api.version>4.0</microprofile-health-api.version>
 
-    <smallrye-config.version>3.14.1</smallrye-config.version>
+    <smallrye-config.version>3.15.0</smallrye-config.version>
     <smallrye-metrics.version>4.0.0</smallrye-metrics.version>
     <smallrye-common.version>2.14.0</smallrye-common.version>
     <smallrye-health.version>4.3.0</smallrye-health.version>