chore: update .mailmap

---
type: pre_commit_static_analysis_report
description: Results of running static analysis checks when committing changes.
report:
  - task: lint_filenames
    status: passed
  - task: lint_editorconfig
    status: passed
  - task: lint_markdown
    status: na
  - task: lint_package_json
    status: na
  - task: lint_repl_help
    status: na
  - task: lint_javascript_src
    status: na
  - task: lint_javascript_cli
    status: na
  - task: lint_javascript_examples
    status: na
  - task: lint_javascript_tests
    status: na
  - task: lint_javascript_benchmarks
    status: na
  - task: lint_python
    status: na
  - task: lint_r
    status: na
  - task: lint_c_src
    status: na
  - task: lint_c_examples
    status: na
  - task: lint_c_benchmarks
    status: na
  - task: lint_c_tests_fixtures
    status: na
  - task: lint_shell
    status: na
  - task: lint_typescript_declarations
    status: na
  - task: lint_typescript_tests
    status: na
  - task: lint_license_headers
    status: passed
---

Author: Planeshifter

.mailmap

@@ -55,6 +55,8 @@ Chinmay Joshi <[email protected]> Chinmay J
 Debashis Maharana <[email protected]> <[email protected]>
 Debashis Maharana <[email protected]> DebashisMaharana
 
+Deepak Singh <[email protected]>
+
 Dhruv Arvind Singh <[email protected]> DhruvArvindSingh
 Dhruv Arvind Singh <[email protected]> Dhruv/