fix: make test pass

Ref: nodejs/commit-stream#10

The above change to commit-stream makes it strip out `(#xx)` from the summary
and use it as one of the inputs to find the PR url. The change here just
updates the test assertion to remove that from the commit—we don't need it and
this is an improvement in functionality.

test.js

@@ -128,7 +128,7 @@ test('test markdown punctuation chars in commit message and author name', (t) =>
 test('test find-matching-prs', (t) => {
   t.equal(
     exec('--start-ref=a059bc7ca9 --end-ref=a059bc7ca9 --find-matching-prs=true nodejs changelog-maker'),
-    `* [a059bc7ca9] - chore(deps): remove package-lock.json (#118) (Rod Vagg) https://github.com/nodejs/changelog-maker/pull/118
+    `* [a059bc7ca9] - chore(deps): remove package-lock.json (Rod Vagg) https://github.com/nodejs/changelog-maker/pull/118
 `)
   t.end()
 })