Update dependency @embroider/core to v3.4.2 (#7547)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

package.json

@@ -62,7 +62,7 @@
     "@ember/test-helpers": "3.2.0",
     "@ember/test-waiters": "3.1.0",
     "@embroider/compat": "3.3.1",
-    "@embroider/core": "3.4.1",
+    "@embroider/core": "3.4.2",
     "@embroider/webpack": "3.2.1",
     "@glimmer/component": "1.1.2",
     "@glimmer/tracking": "1.1.2",