Bump ember-cli-htmlbars from 4.0.8 to 4.2.0

Bumps [ember-cli-htmlbars](https://github.com/ember-cli/ember-cli-htmlbars) from 4.0.8 to 4.2.0.
- [Release notes](https://github.com/ember-cli/ember-cli-htmlbars/releases)
- [Changelog](https://github.com/ember-cli/ember-cli-htmlbars/blob/master/CHANGELOG.md)
- [Commits](ember-cli/ember-cli-htmlbars@v4.0.8...v4.2.0)

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

Author: dependabot-preview[bot]

yarn.lock

@@ -4172,9 +4172,9 @@ ember-cli-htmlbars-inline-precompile@^3.0.0:
     silent-error "^1.1.0"
 
 ember-cli-htmlbars@^4.0.8:
-  version "4.0.8"
-  resolved "https://registry.yarnpkg.com/ember-cli-htmlbars/-/ember-cli-htmlbars-4.0.8.tgz#e87b62e7040bd478a2d007053bdb1644dd1685b0"
-  integrity sha512-B6fzlqmv2E2dl8P6UIYu3bY8nZU2kKfl1VkEIgxFAINfsu9fP65kX/bKzHqGhHF8nAtWBoXZWw6tomHKfUT/Jg==
+  version "4.2.0"
+  resolved "https://registry.yarnpkg.com/ember-cli-htmlbars/-/ember-cli-htmlbars-4.2.0.tgz#a3694ab31f6d571c45786a3041b9c76e4eb30989"
+  integrity sha512-YymJLg/rRiclK5jxbTFpaRNlbS+f3SY6SplnMExjcrcbSjMRsBuams50+mppENEu7iKfd6PBqH3FHVbYsukHSQ==
   dependencies:
     "@ember/edition-utils" "^1.1.1"
     babel-plugin-htmlbars-inline-precompile "^3.0.0"
@@ -4183,11 +4183,10 @@ ember-cli-htmlbars@^4.0.8:
     broccoli-plugin "^3.0.0"
     common-tags "^1.8.0"
     ember-cli-babel-plugin-helpers "^1.1.0"
-    fs-copy-file-sync "^1.1.1"
+    fs-tree-diff "^2.0.1"
     hash-for-dep "^1.5.1"
     heimdalljs-logger "^0.1.10"
     json-stable-stringify "^1.0.1"
-    mkdirp "^0.5.1"
     semver "^6.3.0"
     strip-bom "^4.0.0"
     walk-sync "^2.0.2"
@@ -5470,11 +5469,6 @@ fs-constants@^1.0.0:
   resolved "https://registry.yarnpkg.com/fs-constants/-/fs-constants-1.0.0.tgz#6be0de9be998ce16af8afc24497b9ee9b7ccd9ad"
   integrity sha512-y6OAwoSIf7FyjMIv94u+b5rdheZEjzR63GTyZJm5qh4Bi+2YgwLCcI/fPFZkL5PSixOt6ZNKm+w+Hfp/Bciwow==
 
-fs-copy-file-sync@^1.1.1:
-  version "1.1.1"
-  resolved "https://registry.yarnpkg.com/fs-copy-file-sync/-/fs-copy-file-sync-1.1.1.tgz#11bf32c096c10d126e5f6b36d06eece776062918"
-  integrity sha512-2QY5eeqVv4m2PfyMiEuy9adxNP+ajf+8AR05cEi+OAzPcOj90hvFImeZhTmKLBgSd9EvG33jsD7ZRxsx9dThkQ==
-
 fs-extra@^0.24.0:
   version "0.24.0"
   resolved "https://registry.yarnpkg.com/fs-extra/-/fs-extra-0.24.0.tgz#d4e4342a96675cb7846633a6099249332b539952"