Upgrade actions, use "Dots" runner

Author: thekid

.github/workflows/ci.yml

@@ -24,7 +24,7 @@ jobs:
       run: git config --system core.autocrlf false; git config --system core.eol lf
 
     - name: Checkout
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
 
     - name: Set up PHP ${{ matrix.php-versions }}
       uses: shivammathur/setup-php@v2
@@ -40,7 +40,7 @@ jobs:
       run: echo "::set-output name=dir::$(composer config cache-files-dir)"
 
     - name: Cache dependencies
-      uses: actions/cache@v3
+      uses: actions/cache@v4
       with:
         path: ${{ steps.composer-cache.outputs.dir }}
         key: ${{ runner.os }}-composer-${{ hashFiles('**/composer.lock') }}
@@ -53,4 +53,4 @@ jobs:
         echo "vendor/autoload.php" > composer.pth
 
     - name: Run test suite
-      run: sh xp-run xp.test.Runner src/test/php
+      run: sh xp-run xp.test.Runner -r Dots src/test/php