Correct permissions

Author: rnc

java-components/build-request-processor/src/main/java/com/redhat/hacbs/container/build/preprocessor/AbstractPreprocessor.java

@@ -241,7 +241,9 @@ public void run() {
 
 
         try {
-            Files.writeString(Paths.get(jbsDirectory.toString(), "run-build.sh"), runBuild);
+            Path runBuildSh = Paths.get(jbsDirectory.toString(), "run-build.sh");
+            Files.writeString(runBuildSh, runBuild);
+            runBuildSh.toFile().setExecutable(true);
             Files.writeString(Paths.get(jbsDirectory.toString(), "Containerfile"), containerFile);
         } catch (IOException e) {
             Log.errorf("Unable to write Containerfile", e);