Fix spring-artifactory-gradle-build action to use gradlew

The action currently uses `gradle` which leads to the call of Gradle installation locally.
However, the project might not be compatible with that Gradle version.
* Use `gradlew` instead to rely on the wrapper in the project.

Signed-off-by: Artem Bilan <[email protected]>

Author: artembilan

.github/actions/spring-artifactory-gradle-build/action.yml

@@ -71,7 +71,7 @@ runs:
         cp .github/spring-github-workflows/utils/*.gradle $HOME/.gradle/init.d
         
         # See utils/deployment-repository-init.gradle
-        gradle clean build ${{ inputs.gradleTasks }} publishAllPublicationsToDeploymentRepository
+        ./gradlew clean build ${{ inputs.gradleTasks }} publishAllPublicationsToDeploymentRepository
       env:
         ARTIFACTORY_USERNAME: ${{ inputs.artifactoryUsername }}
         ARTIFACTORY_PASSWORD: ${{ inputs.artifactoryPassword }}