build(deps-dev): Bump @embroider/core from 3.4.19 to 3.4.20 (#1881)

Bumps [@embroider/core](https://github.com/embroider-build/embroider/tree/HEAD/packages/core) from 3.4.19 to 3.4.20.
- [Release notes](https://github.com/embroider-build/embroider/releases)
- [Changelog](https://github.com/embroider-build/embroider/blob/main/CHANGELOG.md)
- [Commits](https://github.com/embroider-build/embroider/commits/HEAD/packages/core)

---
updated-dependencies:
- dependency-name: "@embroider/core"
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

pnpm-lock.yaml

@@ -36,7 +36,7 @@
     "@ember/string": "^3.1.1",
     "@ember/test-helpers": "^4.0.4",
     "@embroider/compat": "^3.7.1",
-    "@embroider/core": "^3.4.19",
+    "@embroider/core": "^3.4.20",
     "@embroider/macros": "^1.16.10",
     "@embroider/test-setup": "^4.0.0",
     "@embroider/webpack": "^4.0.8",