fix(workflows): correct filepath in ena-submission-image workflow (#6164)

An incorrect filepath was passed to `hashFiles()` in the
ena-submission-image workflow.

As far as I can tell, `hashFiles()` will just compute the hash using the
other files that were correctly specified, silently ignoring the
incorrect path. This means the image was not being rebuilt when the
workflow file changed.

(I did a quick pass of other places we use `hashFiles()`, there the
paths seem to be in order)

### PR Checklist
~- [ ] All necessary documentation has been adapted.~
~- [ ] The implemented feature is covered by appropriate, automated
tests.~
~- [ ] Any manual testing that has been done is documented (i.e. what
exactly was tested?)~

🚀 Preview: Add `preview` label to enable

Author: maverbiest

.github/workflows/ena-submission-image.yaml

@@ -55,7 +55,7 @@ jobs:
       - name: Generate files hash
         id: files-hash
         run: |
-          DIR_HASH=$(echo -n ${{ hashFiles('ena-submission/**', '.github/workflows/ena-submission-image.yml') }})
+          DIR_HASH=$(echo -n ${{ hashFiles('ena-submission/**', '.github/workflows/ena-submission-image.yaml') }})
           echo "DIR_HASH=$DIR_HASH${{ env.BUILD_ARM == 'true' && '-arm' || '' }}" >> $GITHUB_ENV
       - name: Setup Docker metadata
         id: dockerMetadata