Update non-breaking major dependencies

package.json

@@ -38,13 +38,13 @@
     "@thumbsup/theme-mosaic": "^1.1.0",
     "JSONStream": "^1.3.5",
     "async": "^3.2.0",
-    "better-sqlite3": "^5.4.0",
+    "better-sqlite3": "^7.0.1",
     "boxen": "^4.2.0",
-    "chalk": "^2.4.2",
+    "chalk": "^4.0.0",
     "command-exists": "^1.2.9",
     "debug": "^4.1.1",
     "event-stream": "^4.0.1",
-    "fs-extra": "^8.0.1",
+    "fs-extra": "^9.0.0",
     "fs-readdir-recursive": "^1.0.0",
     "handlebars": "^4.7.6",
     "ini": "^1.3.4",
@@ -60,7 +60,7 @@
     "through2": "^3.0.1",
     "thumbsup-downsize": "^2.3.1",
     "url-join": "^4.0.1",
-    "yargs": "^13.2.4",
+    "yargs": "^15.3.1",
     "zen-observable": "^0.8.15"
   },
   "devDependencies": {
@@ -69,13 +69,13 @@
     "injectmd": "^1.0.0",
     "istanbul": "^0.4.5",
     "markdown-toc": "^1.1.0",
-    "mocha": "^6.1.4",
+    "mocha": "^7.1.2",
     "mock-fs": "^4.12.0",
     "mock-spawn": "^0.2.6",
     "require-all": "^3.0.0",
     "require-lint": "^1.4.0",
     "should": "^13.2.3",
-    "sinon": "^7.3.2",
+    "sinon": "^9.0.2",
     "standard": "^12.0.1",
     "stream-mock": "^2.0.5",
     "tmp": "^0.1.0"