Fixes bug where worker busy-ness would always be 100

Description

Hotfix for a bug where the cluster starts the maximum number of workers.

Test and Review

To be filled in by the reviewers

• All of the methods are commented to expectation

• The methods are tested to satisfaction

• There are no unnecessary files present in the MR

• The continuous integration has no problems with the MR

• The MR is filled in as requested (including labels, milestones, and reviewers)

• The documentation is up-to-date

• All nullable parameters are marked as such

worker/src/main/java/nl/tudelft/ewi/auta/worker/JobRunner.java

@@ -97,13 +97,13 @@ public class JobRunner {
         logger.debug("Worker running job {}", msg.getId());
 
         try (var job = this.splitter.split(msg)) {
-            gauge.set(0.0);
+            gauge.set(100.0);
             var message = this.checker.run(job);
             this.currentJob.set(null);
             replySender.send(message);
-            gauge.set(100.0);
+            gauge.set(0.0);
         } catch (final Exception ex) {
-            gauge.set(100.0);
+            gauge.set(0.0);
             logger.error("Exception while checking job {}", msg.getId(), ex);
             this.currentJob.set(null);
             try {