Drops support for Node < 14.18.0 in order to guarantee support for 'node:' protocol imports

This change is semver-minor as it drops support for an outdated patch release only

Author: webketje

.github/workflows/test.yml

@@ -25,7 +25,7 @@ jobs:
     strategy:
       matrix:
         os: ['ubuntu-latest', 'windows-latest']
-        node: ['14.14.0']
+        node: ['14.18.0']
     name: Testing Node ${{ matrix.node }} on ${{ matrix.os }}
     steps:
       - uses: actions/checkout@v3
@@ -43,7 +43,7 @@ jobs:
     strategy:
       matrix:
         os: ['ubuntu-latest', 'windows-latest']
-        node: ['14.14.0', '16.0', '18.0', '20.0']
+        node: ['14.18.0', '16.0', '18.0', '20.0']
     name: Testing Node ${{ matrix.node }} on ${{ matrix.os }}
     steps:
       - uses: actions/checkout@v3

README.md

@@ -238,7 +238,7 @@ Use the excellent [metalsmith-debug-ui plugin](https://github.com/leviwheatcroft
 
 Future Metalsmith releases will at least support the oldest supported Node LTS versions.
 
-Metalsmith 2.6.x supports NodeJS versions 14.14.0 and higher.  
+Metalsmith 2.6.x supports NodeJS versions 14.18.0 and higher.  
 Metalsmith 2.5.x supports NodeJS versions 12 and higher.  
 Metalsmith 2.4.x supports NodeJS versions 8 and higher.  
 Metalsmith 2.3.0 and below support NodeJS versions all the way back to 0.12.

package.json

@@ -89,6 +89,6 @@
     "typescript": "^5.3.3"
   },
   "engines": {
-    "node": ">=14.14.0"
+    "node": ">=14.18.0"
   }
 }