build!: update library to use Node 12 (#434)

* build!: Update library to use Node 12
Co-authored-by: Owl Bot <gcf-owl-bot[bot]@users.noreply.github.com>

Author: sofisl

.github/sync-repo-settings.yaml

@@ -9,9 +9,9 @@ branchProtectionRules:
       - "ci/kokoro: System test"
       - docs
       - lint
-      - test (10)
       - test (12)
       - test (14)
+      - test (16)
       - cla/google
       - windows
       - OwlBot Post Processor

.github/workflows/ci.yaml

@@ -9,7 +9,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        node: [10, 12, 14]
+        node: [12, 14, 16]
     steps:
       - uses: actions/checkout@v3
       - uses: actions/setup-node@v3

.kokoro/continuous/node10/common.cfg

@@ -5,7 +5,7 @@
   "license": "Apache-2.0",
   "author": "google-proto-files project authors",
   "engines": {
-    "node": ">=10"
+    "node": ">=12.0.0"
   },
   "repository": "googleapis/nodejs-proto-files",
   "main": "./build/src/index.js",
@@ -53,11 +53,11 @@
     "codecov": "^3.0.0",
     "decompress-zip": "^0.3.2",
     "got": "^11.0.0",
-    "gts": "^2.0.0",
+    "gts": "^3.1.0",
     "linkinator": "^2.0.0",
-    "mocha": "^8.0.0",
+    "mocha": "^9.2.2",
     "proxyquire": "^2.0.0",
     "sinon": "^14.0.0",
-    "typescript": "^3.8.3"
+    "typescript": "^4.6.4"
   }
 }

.kokoro/continuous/node10/docs.cfg

@@ -6,7 +6,7 @@
     "*.js"
   ],
   "engines": {
-    "node": ">=10"
+    "node": ">=12.0.0"
   },
   "repository": "googleapis/nodejs-proto-files",
   "private": true,