feat: add caxpb, dxsa, and sxsa 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_pkg_readmes
    status: na
  - task: lint_markdown_docs
    status: na
  - 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: kgryte

lib/node_modules/@stdlib/blas/ext/base/lib/index.js

@@ -45,6 +45,15 @@ var ns = {};
 */
 setReadOnly( ns, 'capx', require( '@stdlib/blas/ext/base/capx' ) );
 
+/**
+* @name caxpb
+* @memberof ns
+* @readonly
+* @type {Function}
+* @see {@link module:@stdlib/blas/ext/base/caxpb}
+*/
+setReadOnly( ns, 'caxpb', require( '@stdlib/blas/ext/base/caxpb' ) );
+
 /**
 * @name cfill
 * @memberof ns
@@ -765,6 +774,15 @@ setReadOnly( ns, 'dvander', require( '@stdlib/blas/ext/base/dvander' ) );
 */
 setReadOnly( ns, 'dwhere', require( '@stdlib/blas/ext/base/dwhere' ) );
 
+/**
+* @name dxsa
+* @memberof ns
+* @readonly
+* @type {Function}
+* @see {@link module:@stdlib/blas/ext/base/dxsa}
+*/
+setReadOnly( ns, 'dxsa', require( '@stdlib/blas/ext/base/dxsa' ) );
+
 /**
 * @name dzeroTo
 * @memberof ns
@@ -1791,6 +1809,15 @@ setReadOnly( ns, 'svander', require( '@stdlib/blas/ext/base/svander' ) );
 */
 setReadOnly( ns, 'swhere', require( '@stdlib/blas/ext/base/swhere' ) );
 
+/**
+* @name sxsa
+* @memberof ns
+* @readonly
+* @type {Function}
+* @see {@link module:@stdlib/blas/ext/base/sxsa}
+*/
+setReadOnly( ns, 'sxsa', require( '@stdlib/blas/ext/base/sxsa' ) );
+
 /**
 * @name szeroTo
 * @memberof ns