🔒️ Add zizmor and fix audit findings (#2260)

Co-authored-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>

.github/workflows/playwright.yml

@@ -15,14 +15,19 @@ on:
         required: false
         default: 'false'
 
+permissions: {}
+
 jobs:
   changes:
     runs-on: ubuntu-latest
+    timeout-minutes: 5
     # Set job outputs to values from filter step
     outputs:
       changed: ${{ steps.filter.outputs.changed }}
     steps:
     - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+      with:
+        persist-credentials: false
     # For pull requests it's not necessary to checkout the code but for the main branch it is
     - uses: dorny/paths-filter@fbd0ab8f3e69293af611ebaee6363fc25e6d187d # v4.0.1
       id: filter
@@ -39,7 +44,7 @@ jobs:
     needs:
       - changes
     if: ${{ needs.changes.outputs.changed == 'true' }}
-    timeout-minutes: 60
+    timeout-minutes: 15
     runs-on: ubuntu-latest
     strategy:
       matrix:
@@ -48,7 +53,11 @@ jobs:
       fail-fast: false
     steps:
     - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
-    - uses: oven-sh/setup-bun@v2
+      with:
+        persist-credentials: false
+    - uses: oven-sh/setup-bun@0c5077e51419868618aeaa5fe8019c62421857d6 # v2.2.0
+      with:
+        bun-version: 1.3.12
     - uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405 # v6.2.0
       with:
         python-version: '3.10'
@@ -58,7 +67,11 @@ jobs:
       with:
         limit-access-to-actor: true
     - name: Install uv
-      uses: astral-sh/setup-uv@37802adc94f370d6bfd71619e3f0bf239e1f3b78 # v7.6.0
+      uses: astral-sh/setup-uv@08807647e7069bb48b6ef5acd8ec9567f424441b # v8.1.0
+      with:
+        # Before upgrading uv version, make sure astral-sh/setup-uv knows its checksum.
+        # See: https://github.com/astral-sh/setup-uv/issues/851#issuecomment-4282017837
+        version: "0.11.4"
     - run: uv sync
       working-directory: backend
     - run: bun ci
@@ -85,9 +98,14 @@ jobs:
     # Merge reports after playwright-tests, even if some shards have failed
     if: ${{ !cancelled() && needs.changes.outputs.changed == 'true' }}
     runs-on: ubuntu-latest
+    timeout-minutes: 5
     steps:
     - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
-    - uses: oven-sh/setup-bun@v2
+      with:
+        persist-credentials: false
+    - uses: oven-sh/setup-bun@0c5077e51419868618aeaa5fe8019c62421857d6 # v2.2.0
+      with:
+        bun-version: 1.3.12
     - name: Install dependencies
       run: bun ci
     - name: Download blob reports from GitHub Actions Artifacts
@@ -113,6 +131,7 @@ jobs:
     needs:
       - test-playwright
     runs-on: ubuntu-latest
+    timeout-minutes: 5
     steps:
       - name: Decide whether the needed jobs succeeded or failed
         uses: re-actors/alls-green@05ac9388f0aebcb5727afa17fcccfecd6f8ec5fe # v1.2.2