Remove step-security/harden-runner from CI workflow

Author: mraible

.github/workflows/main.yml

@@ -18,11 +18,6 @@ jobs:
     name: Test ${{ matrix.function }}
     runs-on: ubuntu-latest
     steps:
-      - name: Harden Runner
-        uses: step-security/harden-runner@20cf305ff2072d973412fa9b1e3a4f227bda3c76 # v2.14.0
-        with:
-          egress-policy: audit
-
       - uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8  # v6.0.1
       - name: Setup Python
         uses: actions/setup-python@83679a892e2d95755f2dac6acb0bfd1e9ac5d548  # v6.1.0
@@ -63,11 +58,6 @@ jobs:
     name: Build UI
     runs-on: ubuntu-latest
     steps:
-      - name: Harden Runner
-        uses: step-security/harden-runner@20cf305ff2072d973412fa9b1e3a4f227bda3c76 # v2.14.0
-        with:
-          egress-policy: audit
-
       - uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8  # v6.0.1
       - name: Setup Node
         uses: actions/setup-node@395ad3262231945c25e8478fd5baf05154b1d79f  # v6.1.0