update tap, test on node 16

Author: isaacs

.github/workflows/ci.yml

@@ -6,7 +6,7 @@ jobs:
   build:
     strategy:
       matrix:
-        node-version: [10.x, 12.x, 13.x]
+        node-version: [10.x, 12.x, 14.x, 15.x, 16.x]
         # todo: add windows-latest to this list.
         # Right now, it's just too flaky and hard to get PWD and HOME out
         # of all the snapshots properly.

package-lock.json

@@ -22,7 +22,7 @@
   "devDependencies": {
     "mutate-fs": "^2.1.1",
     "npm-registry-mock": "^1.3.1",
-    "tap": "^15.0.2"
+    "tap": "^15.0.4"
   },
   "files": [
     "lib/**/*.js"