chore: Add GitHub Actions step to comment on PRs for successful tests…

… and linting

.github/workflows/ci_cd.yml

@@ -28,6 +28,18 @@ jobs:
     - name: Run tests
       run: |
         poetry run pytest
+    - name: Comment PR
+      uses: actions/github-script@v6
+      if: github.event_name == 'pull_request'
+      with:
+        github-token: ${{secrets.GITHUB_TOKEN}}
+        script: |
+          github.rest.issues.createComment({
+            issue_number: context.issue.number,
+            owner: context.repo.owner,
+            repo: context.repo.name,
+            body: '✅ Tests passed for Python ${{ matrix.python-version }}!'
+          })
 
   lint:
     runs-on: ubuntu-latest
@@ -45,6 +57,18 @@ jobs:
       run: |
         poetry run flake8 .
         poetry run black --check .
+    - name: Comment PR
+      uses: actions/github-script@v6
+      if: github.event_name == 'pull_request'
+      with:
+        github-token: ${{secrets.GITHUB_TOKEN}}
+        script: |
+          github.rest.issues.createComment({
+            issue_number: context.issue.number,
+            owner: context.repo.owner,
+            repo: context.repo.name,
+            body: '✅ Linting passed!'
+          })
 
   publish:
     needs: [test, lint]