fix: tap exclude (#503)

Author: reggi

lib/content/package-json.hbs

@@ -53,7 +53,7 @@
     "exclude": {{{ del }}},
     {{#if workspacePaths}}
       "exclude": {{#if tap18}}[
-        "{{ join workspaceGlobs "," }}"
+        "{{ json workspaceGlobs }}"
         ]{{else }}{{{ del }}}{{/if}},
       "test-ignore": {{#if tap18}}{{{ del }}}{{else}}"^({{ join workspacePaths "|" }})/"{{/if}},
     {{/if}}