chore: update workflow to not publish, conditionally

.github/workflows/publish.yml

@@ -8,15 +8,30 @@ on:
             - completed
 
 jobs:
+    check-pyproject-change:
+        runs-on: ubuntu-latest
+        outputs:
+            changed: ${{ steps.filter.outputs.changes }}
+        steps:
+            - uses: actions/checkout@v4
+            - name: Check for pyproject.toml changes
+              id: filter
+              uses: dorny/paths-filter@v2
+              with:
+                  filters: |
+                      pyproject:
+                        - 'pyproject.toml'
     publish:
+        needs: check-pyproject-change
+        if: needs.check-pyproject-change.outputs.changed == 'true'
         name: Build & publish
         runs-on: ubuntu-latest
 
         steps:
             - uses: actions/checkout@v4
 
             - name: Set up Python
-              uses: actions/setup-python@v4
+              uses: actions/setup-python@v5
               with:
                   python-version: 3.11