build: globally set npm publish provenance

Author: Planeshifter

.npmrc

@@ -26,3 +26,6 @@ shrinkwrap = false
 
 # Disable automatically "saving" dependencies on install:
 save = false
+
+# Generate provenance metadata:
+provenance = true

lib/node_modules/@stdlib/_tools/scripts/publish_packages.js

@@ -133,7 +133,7 @@ var CLI_INSTALLATION_SECTION = [
 ].join( '\n' );
 
 var mainDir = join( __dirname, '..', '..', '..', '..', '..' );
-var DOTFILES = [ '.editorconfig', '.gitignore', '.gitattributes', 'CONTRIBUTORS', 'NOTICE', 'CITATION.cff' ];
+var DOTFILES = [ '.editorconfig', '.gitignore', '.gitattributes', '.npmrc', 'CONTRIBUTORS', 'NOTICE', 'CITATION.cff' ];
 
 var WORKFLOW_CLOSE_PULLS = [
 	'#/',
@@ -740,7 +740,6 @@ function publish( pkg, clbk ) {
 		customLicense = false;
 	}
 	fs.copyFileSync( join( __dirname, 'templates', '.npmignore.txt' ), join( dist, '.npmignore' ) );
-	fs.copyFileSync( join( __dirname, 'templates', '.npmrc.txt' ), join( dist, '.npmrc' ) );
 	fs.copyFileSync( join( __dirname, 'templates', 'Makefile.txt' ), join( dist, 'Makefile' ) );
 	fs.copyFileSync( join( __dirname, 'templates', '.eslintrc.js.txt' ), join( dist, '.eslintrc.js' ) );
 	writeFileSync( join( dist, 'CHANGELOG.md' ), replace( CHANGELOG, '<pkg>', distPkg ) );