Stop testing on node v12

Author: bjornstar

.appveyor.yml

@@ -2,9 +2,9 @@ build: off
 
 environment:
   matrix:
+    - nodejs_version: '18'
     - nodejs_version: '16'
     - nodejs_version: '14'
-    - nodejs_version: '12'
 
 install:
   - ps: Install-Product node $env:nodejs_version

.github/workflows/nodejs.yml

@@ -13,7 +13,7 @@ jobs:
 
     strategy:
       matrix:
-        node-version: ["12.10", "12.16", "12.x", "14.x", "16.x", "17.x"]
+        node-version: ["14.x", "16.x", "17.x", "18.x"]
 
     steps:
     - uses: actions/checkout@v2
@@ -29,7 +29,7 @@ jobs:
 
     strategy:
       matrix:
-        node-version: ["12.10", "12.16", "12.x", "14.x", "16.x", "17.x"]
+        node-version: ["14.x", "16.x", "17.x", "18.x"]
 
     steps:
     - uses: actions/checkout@v2