Bump io.smallrye.config:smallrye-config-source-yaml in /devtools/gradle

Bumps io.smallrye.config:smallrye-config-source-yaml from 3.4.1 to 3.4.3.

---
updated-dependencies:
- dependency-name: io.smallrye.config:smallrye-config-source-yaml
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

devtools/gradle/gradle/libs.versions.toml

@@ -3,7 +3,7 @@ plugin-publish = "1.2.1"
 
 # updating Kotlin here makes QuarkusPluginTest > shouldNotFailOnProjectDependenciesWithoutMain(Path) fail
 kotlin = "1.8.10"
-smallrye-config = "3.4.1"
+smallrye-config = "3.4.3"
 
 junit5 = "5.10.0"
 assertj = "3.24.2"