fix: update examples

---
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: missing_dependencies
  - 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: shubham220420

lib/node_modules/@stdlib/stats/base/dists/gilbrat/mean/examples/c/example.c

@@ -16,7 +16,7 @@
 * limitations under the License.
 */
 
-#include "stdlib/stats/base/dists/halfnormal/mean.h"
+#include "stdlib/stats/base/dists/gilbrat/mean.h"
 #include <stdlib.h>
 #include <stdio.h>
 
@@ -32,7 +32,7 @@ int main( void ) {
 
 	for ( i = 0; i < 10; i++ ) {
 		sigma = random_uniform( 0.1, 20.0 );
-		y = stdlib_base_dists_halfnormal_mean( sigma );
+		y = stdlib_base_dists_gilbrat_mean( sigma );
 		printf( "σ: %lf, E(X;σ): %lf\n", sigma, y );
 	}
 }

lib/node_modules/@stdlib/stats/base/dists/gilbrat/mean/manifest.json

@@ -56,7 +56,6 @@
       "libraries": [],
       "libpath": [],
       "dependencies": [
-        "@stdlib/math/base/napi/unary",
         "@stdlib/math/base/assert/is-nan",
         "@stdlib/math/base/special/sqrt",
         "@stdlib/constants/float64/e"
@@ -74,7 +73,6 @@
       "libraries": [],
       "libpath": [],
       "dependencies": [
-        "@stdlib/math/base/napi/unary",
         "@stdlib/math/base/assert/is-nan",
         "@stdlib/math/base/special/sqrt",
         "@stdlib/constants/float64/e"