feat!: remove Node.js 18 as it reached EOL

Author: timbru31

.github/workflows/buildx.yml

@@ -15,9 +15,6 @@ jobs:
       fail-fast: false
       matrix:
         docker-file:
-          - path: 18
-            tags: "18 hydrogen"
-            platforms: linux/amd64,linux/arm64,linux/ppc64le,linux/s390x,linux/arm/v7,linux/arm/v6
           - path: 20
             tags: "20 iron latest"
             platforms: linux/amd64,linux/arm64,linux/ppc64le,linux/s390x,linux/arm/v7,linux/arm/v6

.github/workflows/dockerimage.yml

@@ -13,7 +13,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        node-version: [18, 20, 22]
+        node-version: [20, 22]
 
     steps:
       - uses: actions/checkout@v4.2.2

.github/workflows/hadolint.yml

@@ -14,4 +14,4 @@ jobs:
 
       - run: brew install hadolint
 
-      - run: hadolint {18,20,22}/Dockerfile
+      - run: hadolint {20,22}/Dockerfile

18/Dockerfile

@@ -4,11 +4,11 @@
 [![buildx Status](https://github.com/timbru31/docker-node-alpine-git/workflows/buildx/badge.svg)](https://github.com/timbru31/docker-node-alpine-git/actions?query=workflow%3Abuildx)
 [![Lint Dockerfiles](https://github.com/timbru31/docker-node-alpine-git/workflows/Lint%20Dockerfiles/badge.svg)](https://github.com/timbru31/docker-node-alpine-git/actions?query=workflow%3A%22Lint+Dockerfiles%22)
 
-A minimal Dockerfile based on Node.js 18 LTS (Hydrogen),  Node.js 20 LTS (Iron) or Node.js 22 LTS (Jod) alpine with Git and ssh installed.
+A minimal Dockerfile based on Node.js 20 LTS (Iron) or Node.js 22 LTS (Jod) alpine with Git and ssh installed.
 
 ## What's included
 
-- Node.js 18 LTS (Hydrogen), Node.js 20 LTS (Iron) or Node.js 22 LTS (Jod)
+- Node.js 20 LTS (Iron) or Node.js 22 LTS (Jod)
 - npm 10
 - yarn
 - Git