Bump @electron-forge/maker-dmg from 6.0.0-beta.66 to 6.0.0-beta.67 (#965

)

Bumps [@electron-forge/maker-dmg](https://github.com/electron-userland/electron-forge) from 6.0.0-beta.66 to 6.0.0-beta.67.
- [Release notes](https://github.com/electron-userland/electron-forge/releases)
- [Changelog](https://github.com/electron-userland/electron-forge/blob/master/CHANGELOG.md)
- [Commits](electron/forge@v6.0.0-beta.66...v6.0.0-beta.67)

---
updated-dependencies:
- dependency-name: "@electron-forge/maker-dmg"
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

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

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

yarn.lock

@@ -710,11 +710,6 @@
     debug "^4.1.1"
     minimatch "^3.0.4"
 
-"@humanwhocodes/gitignore-to-minimatch@^1.0.2":
-  version "1.0.2"
-  resolved "https://registry.yarnpkg.com/@humanwhocodes/gitignore-to-minimatch/-/gitignore-to-minimatch-1.0.2.tgz#316b0a63b91c10e53f242efb4ace5c3b34e8728d"
-  integrity sha512-rSqmMJDdLFUsyxR6FMtD00nfQKKLFb1kv+qBbOVKqErvloEIJLo5bDTJTQNTYgeyp78JsA7u/NPi5jT1GR/MuA==
-
 "@humanwhocodes/module-importer@^1.0.1":
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/@humanwhocodes/module-importer/-/module-importer-1.0.1.tgz#af5b2691a22b44be847b0ca81641c5fb6ad0172c"