Remove zizmor

Due to lacking descriptions for findings, this does currently not provide any value when run in the pipeline

.github/workflows/zizmor.yaml

@@ -1,31 +0,0 @@
-name: GitHub Actions Security Analysis with zizmor 🌈
-
-on:
-  push:
-    branches: ["main"]
-  pull_request:
-    branches: ["**"]
-
-jobs:
-  zizmor:
-    name: zizmor latest via PyPI
-    runs-on: ubuntu-latest
-    permissions:
-      security-events: write
-      actions: read
-    steps:
-      - name: Checkout repository
-        uses: actions/checkout@v4
-        with:
-          persist-credentials: false
-      - name: Install the latest version of uv
-        uses: astral-sh/setup-uv@v5
-      - name: Run zizmor 🌈
-        run: uvx zizmor --format sarif . > results.sarif
-        env:
-          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-      - name: Upload SARIF file
-        uses: github/codeql-action/upload-sarif@v3
-        with:
-          sarif_file: results.sarif
-          category: zizmor