Create psalm.yml 🎱

.github/workflows/psalm.yml

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+# This workflow uses actions that are not certified by GitHub.
+# They are provided by a third-party and are governed by
+# separate terms of service, privacy policy, and support
+# documentation.
+
+name: Psalm Security Scan
+
+on:
+  push:
+    branches: [ "main" ]
+  schedule:
+    - cron: '0 0 */3 * *'
+
+permissions:
+  contents: read
+
+jobs:
+  php-security:
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read # for actions/checkout to fetch code
+      security-events: write # for github/codeql-action/upload-sarif to upload SARIF results
+      actions: read # only required for a private repository by github/codeql-action/upload-sarif to get the Action run status
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Psalm Security Scan
+        uses: psalm/psalm-github-security-scan@f3e6fd9432bc3e44aec078572677ce9d2ef9c287
+
+      - name: Upload Security Analysis results to GitHub
+        uses: github/codeql-action/upload-sarif@v3
+        with:
+          sarif_file: results.sarif