build: add RE_DECLARE_CONST check for function-type exports

---
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: passed
  - task: lint_typescript_tests
    status: na
  - task: lint_license_headers
    status: passed
---

Author: Planeshifter

lib/node_modules/@stdlib/_tools/eslint/rules/tsdoc-declarations-doctest/lib/add_package_to_scope.js

@@ -64,7 +64,10 @@ function addPackageToScope( scope, pkg, sourceText ) {
 
 	pkgType = typeof pkg;
 	if ( pkgType === 'function' ) {
-		match = sourceText.match( RE_DECLARE_FUNCTION ) || sourceText.match( RE_DECLARE_VAR ) || sourceText.match( RE_DECLARE_CLASS ); // eslint-disable-line max-len
+		match = sourceText.match( RE_DECLARE_FUNCTION ) ||
+			sourceText.match( RE_DECLARE_VAR ) ||
+			sourceText.match( RE_DECLARE_CLASS ) ||
+			sourceText.match( RE_DECLARE_CONST );
 		if ( match ) {
 			scope[ match[1] ] = pkg;
 		}