build: use byte length instead of character length for Content-Length header

---
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/github/create-repo/lib/query.js

@@ -21,6 +21,7 @@
 // MODULES //
 
 var logger = require( 'debug' );
+var Buffer = require( '@stdlib/buffer/ctor' );
 var getOpts = require( './options.js' );
 var getData = require( './data.js' );
 var request = require( './request.js' );
@@ -59,7 +60,7 @@ function query( name, options, clbk ) {
 
 	// Get the request data:
 	data = getData( name, options );
-	opts.headers[ 'Content-Length' ] = data.length;
+	opts.headers[ 'Content-Length' ] = Buffer.byteLength( data );
 
 	// Make the request:
 	request( opts, data, done );