scripts/unpinnedNpmPackageInstallVersions.fsx: add

Add unpinnedNpmPackageInstallVersions.fsx script and specify
package versions in npm install commands in GitHubCI.

.github/workflows/CI.yml

@@ -77,7 +77,7 @@ jobs:
           sudo apt install --yes --no-install-recommends npm curl
           # need to update nodejs because with ubuntu's default nodejs version we would get this error:
           # error @jest/core@29.4.1: The engine "node" is incompatible with this module. Expected version "^14.15.0 || ^16.10.0 || >=18.0.0". Got "12.22.9"
-          sudo npm install --global n
+          sudo npm install --global n@9.1.0
           sudo n lts
       - name: Print versions
         run: |
@@ -86,12 +86,12 @@ jobs:
           npm --version
       - name: Install yarn
         run: |
-          npm install --global yarn
+          npm install --global yarn@1.22.19
           yarn add --dev jest typescript ts-jest @types/jest
       - name: Install commitlint
         run: |
-          npm install conventional-changelog-conventionalcommits
-          npm install commitlint@latest
+          npm install conventional-changelog-conventionalcommits@6.1.0
+          npm install commitlint@17.6.6
       - name: Print versions
         run: |
           git --version
@@ -130,7 +130,7 @@ jobs:
           #    at wrapSafe (internal/modules/cjs/loader.js:915:16)
           # ...
           # ```
-          sudo npm install --global n
+          sudo npm install --global n@9.1.0
           sudo n lts
       - uses: actions/checkout@v2
         with:
@@ -179,6 +179,8 @@ jobs:
         run: dotnet fsi scripts/unpinnedNugetPackageReferenceVersions.fsx
       - name: Check there are no unpinned versions in `dotnet tool install` commands
         run: dotnet fsi scripts/unpinnedDotnetToolInstallVersions.fsx
+      - name: Check there are no unpinned versions in `npm install` commands
+        run: dotnet fsi scripts/unpinnedNpmPackageInstallVersions.fsx
       - name: Check commits 1 by 1
         if: github.event_name == 'pull_request'
         run: dotnet fsi scripts/checkCommits1by1.fsx

scripts/unpinnedNpmPackageInstallVersions.fsx

@@ -0,0 +1,20 @@
+#!/usr/bin/env -S dotnet fsi
+
+open System
+open System.IO
+
+#load "../src/FileConventions/Library.fs"
+#load "../src/FileConventions/Helpers.fs"
+
+let rootDir = Path.Combine(__SOURCE_DIRECTORY__, "..") |> DirectoryInfo
+
+let invalidFiles =
+    Helpers.GetInvalidFiles
+        rootDir
+        "*.yml"
+        FileConventions.DetectUnpinnedNpmPackageInstallVersions
+
+let message =
+    "Please define the package version number in the `npm install` commands."
+
+Helpers.AssertNoInvalidFiles invalidFiles message