acc: Fix artifact_path_with_volume tests after musterr change (#3841)

## Changes

Update test outputs to remove 'Exit code (musterr): 1'.

This is no longer printed after the musterr function was modified to not
log exit codes.

Needed after #3345.

Author: pietern

acceptance/bundle/artifacts/artifact_path_with_volume/volume_doesnot_exist/output.txt

@@ -28,6 +28,4 @@ Error: volume main.schema-[UNIQUE_NAME].doesnotexist does not exist
   in databricks.yml:6:18
 
 
-Exit code (musterr): 1
-
 >>> [CLI] schemas delete main.schema-[UNIQUE_NAME]

acceptance/bundle/artifacts/artifact_path_with_volume/volume_not_deployed/output.txt

@@ -35,6 +35,4 @@ the volume using 'bundle deploy' and then switch over to using it in
 the artifact_path.
 
 
-Exit code (musterr): 1
-
 >>> [CLI] schemas delete main.schema-[UNIQUE_NAME]