feat: add dmeanstdev and dmeanstdevpn to namespace

---
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: passed
  - 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: kgryte

lib/node_modules/@stdlib/stats/strided/lib/index.js

@@ -180,6 +180,24 @@ setReadOnly( ns, 'dmeanpn', require( '@stdlib/stats/strided/dmeanpn' ) );
 */
 setReadOnly( ns, 'dmeanpw', require( '@stdlib/stats/strided/dmeanpw' ) );
 
+/**
+* @name dmeanstdev
+* @memberof ns
+* @readonly
+* @type {Function}
+* @see {@link module:@stdlib/stats/strided/dmeanstdev}
+*/
+setReadOnly( ns, 'dmeanstdev', require( '@stdlib/stats/strided/dmeanstdev' ) );
+
+/**
+* @name dmeanstdevpn
+* @memberof ns
+* @readonly
+* @type {Function}
+* @see {@link module:@stdlib/stats/strided/dmeanstdevpn}
+*/
+setReadOnly( ns, 'dmeanstdevpn', require( '@stdlib/stats/strided/dmeanstdevpn' ) );
+
 /**
 * @name dmeanvar
 * @memberof ns