chore: bump min node version to 18 (#1849)

Author: dariuszkuc

.github/workflows/http-spec-compliance.yml

@@ -27,7 +27,7 @@ jobs:
       - name: Setup Node.js
         uses: actions/setup-node@v3
         with:
-          node-version: 16
+          node-version: 18
 
       - name: Setup NPM cache
         uses: actions/cache@v3

.github/workflows/pr-check-docs.yml

@@ -19,7 +19,7 @@ jobs:
       - name: Setup Node.js
         uses: actions/setup-node@v3
         with:
-          node-version: 16
+          node-version: 18
 
       - uses: actions/cache@v3
         with:

.github/workflows/publish-latest-docs.yml

@@ -21,7 +21,7 @@ jobs:
       - name: Setup Node.js
         uses: actions/setup-node@v3
         with:
-          node-version: 17
+          node-version: 18
 
       - uses: actions/cache@v3
         with: