fix(ct): patch build error (#3432)

Fixes a build error where files were being referenced that were not
included in the NPM build. CI did not catch this because CI operates on
what's in the monorepo, which included the relevant files.
Co-authored-by: mergify[bot] <37929162+mergify[bot]@users.noreply.github.com>

.changeset/strange-sloths-sniff.md

+---
+'@eth-optimism/contracts': patch
+---
+
+Quick patch to fix a build issue in the contracts package

packages/contracts/scripts/generate-artifacts.ts

@@ -15,6 +15,15 @@ const main = async () => {
 
   const artifactPaths = glob
     .sync(`${contractArtifactsFolder}/**/*.json`)
+    .filter((match) => {
+      return [
+        'artifacts/contracts/chugsplash',
+        'artifacts/contracts/L1',
+        'artifacts/contracts/L2',
+        'artifacts/contracts/libraries',
+        'artifacts/contracts/standards',
+      ].some((folder) => match.includes(folder))
+    })
     .filter((match) => {
       // Filter out the debug outputs.
       return !match.endsWith('.dbg.json')