dependencies: Upgrade JavaScript dependencies.

Signed-off-by: Anders Kaseorg <anders@zulipchat.com>

package.json

@@ -28,7 +28,7 @@
     "emoji-datasource-twitter": "^5.0.1",
     "error-stack-parser": "^2.0.2",
     "expose-loader": "^0.7.5",
-    "file-loader": "^5.0.2",
+    "file-loader": "^6.0.0",
     "flatpickr": "^4.5.7",
     "font-awesome": "^4.7.0",
     "handlebars": "^4.7.2",
@@ -62,7 +62,7 @@
     "stacktrace-gps": "^3.0.4",
     "style-loader": "^1.0.0",
     "terser-webpack-plugin": "^2.1.0",
-    "turndown": "^5.0.3",
+    "turndown": "^6.0.0",
     "underscore": "^1.9.1",
     "unorm": "^1.6.0",
     "webfonts-loader": "^5.0.0",
@@ -93,15 +93,15 @@
     "jsdom": "^16.1.0",
     "nyc": "^15.0.0",
     "phantomjs-prebuilt": "^2.1.16",
-    "puppeteer": "^2.1.1",
+    "puppeteer": "^3.0.0",
     "source-map": "^0.6.1",
     "stylelint": "^13.0.0",
     "svgo": "^1.2.2",
-    "swagger-parser": "^8.0.1",
+    "swagger-parser": "^9.0.1",
     "typescript": "^3.5.1",
     "vnu-jar": "^20.1.2",
     "webpack-dev-server": "^3.5.1",
-    "yarn-deduplicate": "^1.1.1"
+    "yarn-deduplicate": "^2.0.0"
   },
   "scripts": {
     "postinstall": "rm -rf ./var/webpack-cache",

version.py

@@ -34,4 +34,4 @@ DESKTOP_WARNING_VERSION = "5.0.0"
 #   historical commits sharing the same major version, in which case a
 #   minor version bump suffices.
 
-PROVISION_VERSION = '78.0'
+PROVISION_VERSION = '79.0'