bump node.js version in the site workflow

node 14.x is in maintenance and doesn't seem well supported by github actions any more

node 18.x went LTS 2022-10-25

Signed-off-by: Lee Surprenant <lmsurpre@merative.com>

Author: lmsurpre

.github/workflows/site.yml

@@ -19,7 +19,7 @@ jobs:
 
     strategy:
         matrix:
-            node-version: [14.x]
+            node-version: [18.x]
 
     steps:
     - name: Grab the main Branch
@@ -125,4 +125,4 @@ jobs:
       run: |
             # As documented here, the GH-Pages behavior changed, and the API must be 'Triggered'
             # https://github.community/t5/GitHub-Actions/Github-action-not-triggering-gh-pages-upon-push/m-p/43192/highlight/true#M5281
-            curl -L -X POST -H "Content-Type: application/json" -H "Authorization: token ${GITHUB_TOKEN}" "https://api.github.com/repos/${GITHUB_REPOSITORY}/pages/builds"
+            curl -L -X POST -H "Content-Type: application/json" -H "Authorization: token ${GITHUB_TOKEN}" "https://api.github.com/repos/${GITHUB_REPOSITORY}/pages/builds"