chore(deps): Bump dawidd6/action-send-mail from 5 to 6

Bumps [dawidd6/action-send-mail](https://github.com/dawidd6/action-send-mail) from 5 to 6.
- [Release notes](https://github.com/dawidd6/action-send-mail/releases)
- [Commits](dawidd6/action-send-mail@v5...v6)

---
updated-dependencies:
- dependency-name: dawidd6/action-send-mail
  dependency-version: '6'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

.github/workflows/release.yml

@@ -68,7 +68,7 @@ jobs:
       - id: mail
         name: Send Mail
         if: steps.commits.outputs.count > 0
-        uses: dawidd6/action-send-mail@v5
+        uses: dawidd6/action-send-mail@v6
         with:
           server_address: ${{ secrets.MAIL_SERVER }}
           server_port: ${{ secrets.MAIL_PORT }}