Update validation action

Author: cmil

.github/workflows/validation.yml

@@ -42,14 +42,14 @@ jobs:
         run: echo 'files=tei/*.xml' >> $GITHUB_OUTPUT
 
       - name: Validate against TEI-All schema
-        uses: dracor-org/dracor-validate-action@0d759390575fca8d28afe95584f539e464d1c0df # v2.2.0
+        uses: dracor-org/dracor-validate-action@bf3d565b8af9d7cb5d3a0a2cb21ebac68f85eb33 # v2.3.0
         with:
           files: |
             ${{ steps.changed-tei-files.outputs.all_changed_files }}
             ${{ steps.all-tei-files.outputs.files }}
 
       - name: Validate against DraCor schema
-        uses: dracor-org/dracor-validate-action@0d759390575fca8d28afe95584f539e464d1c0df # v2.2.0
+        uses: dracor-org/dracor-validate-action@bf3d565b8af9d7cb5d3a0a2cb21ebac68f85eb33 # v2.3.0
         with:
           files: |
             ${{ steps.changed-tei-files.outputs.all_changed_files }}