Bump @graphql-tools/executor-legacy-ws from 1.0.3 to 1.0.4

Bumps [@graphql-tools/executor-legacy-ws](https://github.com/ardatan/graphql-tools/tree/HEAD/packages/executors/legacy-ws) from 1.0.3 to 1.0.4.
- [Release notes](https://github.com/ardatan/graphql-tools/releases)
- [Changelog](https://github.com/ardatan/graphql-tools/blob/master/packages/executors/legacy-ws/CHANGELOG.md)
- [Commits](https://github.com/ardatan/graphql-tools/commits/@graphql-tools/[email protected]/packages/executors/legacy-ws)

---
updated-dependencies:
- dependency-name: "@graphql-tools/executor-legacy-ws"
  dependency-type: indirect
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>