feat: Drop official support for Node v18

.devcontainer/Dockerfile

@@ -1,4 +1,4 @@
-ARG VARIANT="20"
+ARG VARIANT="22"
 
 FROM mcr.microsoft.com/vscode/devcontainers/javascript-node:${VARIANT}
 

.devcontainer/devcontainer.json

@@ -3,7 +3,7 @@
   "build": {
     "dockerfile": "Dockerfile",
     "args": {
-      "VARIANT": "20"
+      "VARIANT": "22"
     }
   },
   "extensions": [

.github/actions/setup/action.yml

@@ -6,7 +6,7 @@ inputs:
   node_version:
     description: The Node.js version.
     required: false
-    default: '20'
+    default: '22'
   registry_url:
     description: The Node.js package registry URL.
     required: false

.github/workflows/_build.yml

@@ -8,7 +8,7 @@ on:
         description: The Node.js version.
         type: string
         required: false
-        default: '20'
+        default: '22'
     outputs:
       artifact_name:
         description: The artifact name.

.github/workflows/check.yml

@@ -20,8 +20,8 @@ jobs:
         os:
           - ubuntu-latest
         node:
-          - '18'
           - '20'
+          - '22'
         include:
           - os: ubuntu-latest
             os_name: Linux
@@ -42,8 +42,8 @@ jobs:
       fail-fast: false
       matrix:
         node:
-          - '18'
           - '20'
+          - '22'
     steps:
       - name: Checkout
         uses: actions/checkout@v4
@@ -67,8 +67,8 @@ jobs:
         os:
           - ubuntu-latest
         node:
-          - '18'
           - '20'
+          - '22'
         include:
           - os: ubuntu-latest
             os_name: Linux
@@ -113,8 +113,8 @@ jobs:
       fail-fast: false
       matrix:
         node:
-          - '18'
           - '20'
+          - '22'
     steps:
       - name: Checkout
         uses: actions/checkout@v4

.nvmrc

@@ -1 +1 @@
-20
+22