License: Fix linter error for generated file (DevExpress#33650)

Author: ajivanyandev

packages/devextreme/license/devextreme-license.js

@@ -154,7 +154,7 @@ function renderFile(lcpKey) {
         '// Auto-generated by devextreme-license.',
         '// Do not commit this file to source control.',
         '',
-        `export const ${EXPORT_NAME} = ${JSON.stringify(lcpKey)};`,
+        `export const ${EXPORT_NAME} = '${lcpKey}';`,
         '',
     ].join('\n');
 }
@@ -164,7 +164,7 @@ function renderNonModularFile(lcpKey) {
         '// Auto-generated by devextreme-license.',
         '// Do not commit this file to source control.',
         '',
-        `DevExpress.config({ licenseKey: ${JSON.stringify(lcpKey)} });`,
+        `DevExpress.config({ licenseKey: '${lcpKey}' });`,
         '',
     ].join('\n');
 }