build: strip stdlib prefix from commit message and PR

---
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: 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: Planeshifter

.github/workflows/namespace_declarations.yml

@@ -110,7 +110,11 @@ jobs:
           # Process each namespace:
           while IFS= read -r namespace; do
             if [ -n "$namespace" ] && [[ $namespace != *"_tools"* ]]; then
-              branch_name="update-$(echo "$namespace" | sed 's/@stdlib\///' | sed 's/\//-/g')-declarations"
+              # Namespace without the '@stdlib/' scope for display in commit messages and PR titles:
+              display_namespace="${namespace#@stdlib/}"
+
+              # Branch name slug with slashes replaced by dashes:
+              branch_name="update-${display_namespace//\//-}-declarations"
               git checkout -b "$branch_name"
 
               # Generate declarations for this namespace:
@@ -122,13 +126,13 @@ jobs:
                 git add lib/node_modules/@stdlib
 
                 # Commit changes:
-                git commit -m "feat: update \`${namespace}\` TypeScript declarations" --signoff
+                git commit -m "feat: update \`${display_namespace}\` TypeScript declarations" --signoff
 
                 # Push branch and create PR:
                 git push origin "$branch_name"
 
                 gh pr create \
-                  --title "feat: update \`${namespace}\` TypeScript declarations" \
+                  --title "feat: update \`${display_namespace}\` TypeScript declarations" \
                   --body "This PR updates TypeScript declarations for the \`${namespace}\` namespace.
 
           ## Reviewer Checklist