Configure npm to enforce standard project Node.js version

This will produce an error if a contributor attempts to run an npm command in the project using an unsupported version
of Node.js.

.github/workflows/check-markdown-task.yml

@@ -12,6 +12,7 @@ on:
     paths:
       - ".github/workflows/check-markdown-task.ya?ml"
       - ".markdown-link-check.json"
+      - "**/.npmrc"
       - "package.json"
       - "package-lock.json"
       - "Taskfile.ya?ml"
@@ -24,6 +25,7 @@ on:
     paths:
       - ".github/workflows/check-markdown-task.ya?ml"
       - ".markdown-link-check.json"
+      - "**/.npmrc"
       - "package.json"
       - "package-lock.json"
       - "Taskfile.ya?ml"

.github/workflows/check-npm-task.yml

@@ -7,12 +7,14 @@ on:
   push:
     paths:
       - ".github/workflows/check-npm-task.ya?ml"
+      - "**/.npmrc"
       - "**/package.json"
       - "**/package-lock.json"
       - "Taskfile.ya?ml"
   pull_request:
     paths:
       - ".github/workflows/check-npm-task.ya?ml"
+      - "**/.npmrc"
       - "**/package.json"
       - "**/package-lock.json"
       - "Taskfile.ya?ml"

.github/workflows/check-prettier-formatting-task.yml

@@ -8,6 +8,7 @@ on:
     paths:
       - ".github/workflows/check-prettier-formatting-task.ya?ml"
       - "Taskfile.ya?ml"
+      - "**/.npmrc"
       - "**/.prettierignore"
       - "**/.prettierrc*"
       # CSS
@@ -104,6 +105,7 @@ on:
     paths:
       - ".github/workflows/check-prettier-formatting-task.ya?ml"
       - "Taskfile.ya?ml"
+      - "**/.npmrc"
       - "**/.prettierignore"
       - "**/.prettierrc*"
       # CSS

.npmrc

@@ -0,0 +1,3 @@
+# See: https://docs.npmjs.com/cli/configuring-npm/npmrc
+
+engine-strict = true