Merge pull request #5738 from plotly/bump-dev-deps-2021-Jun-17

bump sass, open and eslint dev-dependencies

Author: archmoj

package-lock.json

@@ -144,7 +144,7 @@
     "deep-equal": "^2.0.5",
     "derequire": "^2.1.1",
     "ecstatic": "^4.1.4",
-    "eslint": "^7.25.0",
+    "eslint": "^7.28.0",
     "espree": "^7.3.1",
     "extra-iterable": "^2.5.22",
     "falafel": "^2.2.4",
@@ -171,13 +171,13 @@
     "minify-stream": "^2.1.0",
     "mkdirp": "^1.0.4",
     "npm-link-check": "^4.0.0",
-    "open": "^8.0.7",
+    "open": "^8.2.0",
     "prepend-file": "^2.0.0",
     "prettysize": "^2.0.0",
     "read-last-lines": "^1.8.0",
     "run-series": "^1.1.9",
     "sane-topojson": "^4.0.0",
-    "sass": "^1.34.1",
+    "sass": "^1.35.1",
     "through2": "^4.0.2",
     "true-case-path": "^2.2.1",
     "watchify": "^4.0.0"