Move Psalm to dedicated workflow

Author: paragonie-security

.github/workflows/ci.yml

@@ -58,9 +58,6 @@ jobs:
       - name: PHPUnit tests
         run: vendor/bin/phpunit
 
-      - name: Static Analysis
-        run: vendor/bin/psalm
-
   modern:
     name: PHP ${{ matrix.php-versions }} Test on ${{ matrix.operating-system }}
     runs-on: ${{ matrix.operating-system }}
@@ -85,6 +82,3 @@ jobs:
         run: composer install
       - name: PHPUnit tests
         run: vendor/bin/phpunit
-
-      - name: Static Analysis
-        run: vendor/bin/psalm

.github/workflows/psalm.yml

@@ -0,0 +1,36 @@
+name: Psalm
+
+on: [push]
+
+jobs:
+  psalm:
+    name: Psalm on PHP ${{ matrix.php-versions }}
+    runs-on: ${{ matrix.operating-system }}
+    strategy:
+      matrix:
+        operating-system: ['ubuntu-latest']
+        php-versions: ['8.4']
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Rename psalm.xml to psalm-old.xml
+        run: mv psalm.xml psalm-old.xml
+
+      - name: Rename psalm-new.xml to psalm.xml
+        run: mv psalm-new.xml psalm.xml
+
+      - name: Setup PHP
+        uses: shivammathur/setup-php@v2
+        with:
+          php-version: ${{ matrix.php-versions }}
+          tools: psalm:6
+          coverage: none
+
+      - name: Install Composer dependencies
+        uses: "ramsey/composer-install@v3"
+        with:
+          composer-options: --no-dev
+
+      - name: Static Analysis
+        run: psalm