feat(coding-standard): skip composer install if the coding is already installed

coding-standard/action.yml

@@ -40,13 +40,26 @@ inputs:
 runs:
   using: composite
   steps:
+    - name: Check if Coding Standard is already installed
+      id: check-installed
+      shell: bash
+      working-directory: ${{ inputs.path }}
+      run: |
+        if [ -d "vendor/magento/magento-coding-standard" ] || [ -d "vendor/mage-os/magento-coding-standard" ]; then
+          echo "installed=true" >> $GITHUB_OUTPUT
+        else
+          echo "installed=false" >> $GITHUB_OUTPUT
+        fi
+
     - name: Get Composer Version
       uses: graycoreio/github-actions-magento2/get-composer-version@main
       id: get-composer-version
+      if: steps.check-installed.outputs.installed != 'true'
 
     - name: Check if allow-plugins option is available for this version of composer
       uses: graycoreio/github-actions-magento2/semver-compare@main
       id: is-allow-plugins-available
+      if: steps.check-installed.outputs.installed != 'true'
       with:
         version: 2.2
         compare_against: ${{ steps.get-composer-version.outputs.version }}
@@ -55,12 +68,13 @@ runs:
       shell: bash
       working-directory: ${{ inputs.path }}
       run: composer config allow-plugins.dealerdirect/phpcodesniffer-composer-installer true --global
-      if: steps.is-allow-plugins-available.outputs.result < 1
+      if: steps.check-installed.outputs.installed != 'true' && steps.is-allow-plugins-available.outputs.result < 1
 
     - name: Install Coding Standard
       shell: bash
       working-directory: ${{ inputs.path }}
       run: composer require "magento/magento-coding-standard:${{ inputs.version || '*' }}" "magento/php-compatibility-fork"
+      if: steps.check-installed.outputs.installed != 'true'
       env:
         COMPOSER_AUTH: ${{ inputs.composer_auth }}
 
@@ -79,6 +93,7 @@ runs:
         fi
         vendor/bin/phpcs --config-set installed_paths \
           "vendor/${CODING_STANDARD_VENDOR}/magento-coding-standard,vendor/${CODING_STANDARD_VENDOR}/php-compatibility-fork"
+      if: steps.check-installed.outputs.installed != 'true'
 
     - name: Set ignore warnings flag
       shell: bash