Remove all JS-specific sniffs

Removes the following sniffs:
- Generic.Debug.ClosureLinter
- Generic.Debug.JSHint
- Generic.Debug.ESLint
- Squiz.Classes.DuplicateProperty
- Squiz.Debug.JavaScriptLint
- Squiz.Debug.JSLint
- Squiz.Objects.DisallowObjectStringIndex
- Squiz.Objects.ObjectMemberComma
- Squiz.WhiteSpace.PropertyLabelSpacing

Includes removing two `<exclude name="Generic.Debug"/>` directives from tests for the Filter and Ruleset components.
These excludes were only introduced temporarily to bypass the deprecation notice for sniffing JS/CSS files with the `Generic.Debug.*` sniffs.

Ref:
* squizlabs/PHP_CodeSniffer 2448

Co-authored-by: jrfnl <jrfnl@users.noreply.github.com>

Author: gsherwood

.cspell.json

@@ -28,9 +28,7 @@
         "dnumber",
         "docblock",
         "encapsed",
-        "gjslint",
         "groupid",
-        "gsjlint",
         "hashbang",
         "heredoc",
         "hgblame",

.github/workflows/test.yml

@@ -189,20 +189,6 @@ jobs:
       - name: "DEBUG: show libxml loaded version (php)"
         run: php -r 'echo "libxml loaded version = ", LIBXML_LOADED_VERSION, PHP_EOL;'
 
-      # This action also handles the caching of the dependencies.
-      - name: Set up node
-        if: ${{ matrix.custom_ini == false }}
-        uses: actions/setup-node@v4
-        with:
-          node-version: '20'
-
-      - name: Install external tools used in tests
-        if: ${{ matrix.custom_ini == false }}
-        run: >
-          npm install -g --fund false
-          eslint
-          jshint
-
       # Install dependencies and handle caching in one go.
       # @link https://github.com/marketplace/actions/install-php-dependencies-with-composer
       - name: Install Composer dependencies
@@ -290,20 +276,6 @@ jobs:
           ini-values: error_reporting=-1, display_errors=On${{ steps.set_ini.outputs.PHP_INI }}
           coverage: xdebug
 
-      # This action also handles the caching of the dependencies.
-      - name: Set up node
-        if: ${{ matrix.custom_ini == false }}
-        uses: actions/setup-node@v4
-        with:
-          node-version: '20'
-
-      - name: Install external tools used in tests
-        if: ${{ matrix.custom_ini == false }}
-        run: >
-          npm install -g --fund false
-          eslint
-          jshint
-
       # Install dependencies and handle caching in one go.
       # @link https://github.com/marketplace/actions/install-php-dependencies-with-composer
       - name: Install Composer dependencies