fix(dev): add model-manifest to .gitignore (#49149)

JoshFerge · volokluev · commit b6d6bd7d96b5 · 2023-05-30T12:07:29.000-04:00
hybrid cloud related, should be .gitignored. It seems to get generated
every test run.
diff --git a/.gitignore b/.gitignore
@@ -56,3 +56,4 @@ Brewfile.lock.json
 import-graph.txt
 import-graph.dot
 bin/rrweb-output
+model-manifest.json
