fix: downgrade rollup back to 2.79.0; renovate didn't update the lock file and doing so breaks things (#533)

js/private/coverage/bundle/package.json

diff --git a/js/private/coverage/bundle/package.json b/js/private/coverage/bundle/package.json
index 1c57c6c..e5c2dff 100644
--- a/js/private/coverage/bundle/package.json
+++ b/js/private/coverage/bundle/package.json
@@ -3,7 +3,7 @@
         "c8": "7.12.0"
     },
     "devDependencies": {
-        "rollup": "3.1.0",
+        "rollup": "2.79.0",
         "@rollup/plugin-commonjs": "23.0.0",
         "@rollup/plugin-node-resolve": "15.0.0",
         "@rollup/plugin-json": "5.0.0"