Updated actions to node:18

Author: wmr-trevor

.github/workflows/nodejs.yml

@@ -16,7 +16,7 @@ jobs:
 
     strategy:
       matrix:
-        node-version: [10.x, 12.x]
+        node-version: [18.x]
 
     steps:
     - uses: actions/checkout@v2

.github/workflows/npmpublish.yml

@@ -14,7 +14,7 @@ jobs:
       - uses: actions/checkout@v2
       - uses: actions/setup-node@v1
         with:
-          node-version: 12
+          node-version: 18
       - run: npm ci
       - run: npm run build
       - run: npm test
@@ -26,7 +26,7 @@ jobs:
       - uses: actions/checkout@v2
       - uses: actions/setup-node@v1
         with:
-          node-version: 12
+          node-version: 18
           registry-url: https://registry.npmjs.org/
       - run: npm ci
       - run: npm publish