chore(deps): Update dependencies

Some of the combine tests need manual type annotations because of a
regression in the TypeScript type checker:
microsoft/TypeScript#42314

package.json

@@ -20,23 +20,23 @@
   "author": "Jan van Brügge",
   "license": "MIT",
   "devDependencies": {
-    "@types/assert": "^1.4.4",
-    "@types/benchmark": "^1.0.31",
-    "@types/mocha": "^5.2.7",
+    "@types/assert": "^1.5.6",
+    "@types/benchmark": "^2.1.1",
+    "@types/mocha": "^9.0.0",
     "assert": "^2.0.0",
     "benchmark": "github:bestiejs/benchmark.js#42f3b732bac3640eddb3ae5f50e445f3141016fd",
-    "callbag-basics": "^3.2.0",
-    "fast-check": "^1.21.0",
-    "mocha": "^7.0.1",
-    "most": "^1.8.0",
-    "nyc": "^15.0.0",
-    "prettier": "^1.19.1",
-    "release-it": "^14.2.2",
-    "rollup": "^1.29.1",
-    "rxjs": "^6.5.4",
-    "ts-node": "^8.6.2",
-    "typescript": "^3.7.5",
-    "xstream": "^11.11.0"
+    "callbag-basics": "^4.0.0",
+    "fast-check": "^2.18.0",
+    "mocha": "^9.1.3",
+    "most": "^1.9.0",
+    "nyc": "^15.1.0",
+    "prettier": "^2.4.1",
+    "release-it": "^14.11.6",
+    "rollup": "^2.58.0",
+    "rxjs": "^7.4.0",
+    "ts-node": "^10.4.0",
+    "typescript": "^4.4.4",
+    "xstream": "^11.14.0"
   },
   "publishConfig": {
     "access": "public"