fix(benchmark): generate param for all components + template should not append dot on last row

[tgntr]

…ent params

Description

Please include a summary of the changes and the related issue. Please also include relevant motivation and context, including:

• What does this PR do?
• Why are these changes needed?
• How were these changes implemented and what do they affect?

Use Github semantic linking to address any open issues this PR relates to or closes.

Fixes #395

Checklist:

• [ ] I have read the contributing guidelines.
• [x] My PR title matches the Conventional Commits spec.
• [ ] My change requires a change to the documentation.
• [ ] I have updated the documentation accordingly.
• [ ] I have added tests to cover my changes.
• [x] All new and existing tests passed.
• [ ] I can start a Substrate node using the updated runtime.

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 83.03%. Comparing base (db7346b) to head (3af9038).

Additional details and impacted files

```diff @@ Coverage Diff @@ ## develop #397 +/- ## ======================================== Coverage 83.03% 83.03% ======================================== Files 186 186 Lines 9465 9465 ======================================== Hits 7859 7859 Misses 1306 1306 Partials 300 300 ```

:umbrella: View full report in Codecov by Sentry.
:loudspeaker: Have feedback on the report? Share it here.