Bump undici from 5.28.1 to 5.28.4 in /backend

Bumps [undici](https://github.com/nodejs/undici) from 5.28.1 to 5.28.4.
- [Release notes](https://github.com/nodejs/undici/releases)
- [Commits](https://github.com/nodejs/undici/compare/v5.28.1...v5.28.4)

---
updated-dependencies:
- dependency-name: undici
  dependency-type: indirect
...

Signed-off-by: dependabot[bot] <support@github.com>

.github/workflows/build.yml

@@ -13,9 +13,9 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: checkout code
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       - name: setup node
-        uses: actions/setup-node@v3
+        uses: actions/setup-node@v4
         with:
           node-version: '16'
           cache: 'npm'
@@ -55,7 +55,7 @@ jobs:
           Copy-Item -Path ./backend/*.js -Destination ./build/youtubedl-material
           Copy-Item -Path ./backend/*.json -Destination ./build/youtubedl-material
       - name: upload build artifact
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
           name: youtubedl-material
           path: build
@@ -65,7 +65,7 @@ jobs:
     if: contains(github.ref, '/tags/v')
     steps:
       - name: checkout code
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       - name: create release
         id: create_release
         uses: actions/create-release@v1
@@ -81,7 +81,7 @@ jobs:
           draft: true
           prerelease: false
       - name: download build artifact
-        uses: actions/download-artifact@v3
+        uses: actions/download-artifact@v4
         with:
           name: youtubedl-material
           path: ${{runner.temp}}/youtubedl-material

.github/workflows/codeql-analysis.yml

@@ -30,7 +30,7 @@ jobs:
 
     steps:
     - name: Checkout repository
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
       with:
         # We must fetch at least the immediate parents so that if this is
         # a pull request then we can checkout the head.

.github/workflows/docker-pr.yml

@@ -9,7 +9,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: checkout code
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       - name: Set hash
         id: vars
         run: echo "::set-output name=sha_short::$(git rev-parse --short HEAD)"
@@ -24,9 +24,9 @@ jobs:
           json: '{"type": "docker", "tag": "nightly", "commit": "${{ steps.vars.outputs.sha_short }}", "date": "${{ steps.date.outputs.date }}"}'
           dir: 'backend/'
       - name: setup platform emulator
-        uses: docker/setup-qemu-action@v2
+        uses: docker/setup-qemu-action@v3
       - name: setup multi-arch docker build
-        uses: docker/setup-buildx-action@v2
+        uses: docker/setup-buildx-action@v3
       - name: build & push images
         uses: docker/build-push-action@v5
         with:

.github/workflows/docker-release.yml

@@ -15,7 +15,7 @@ jobs:
 
     steps:
       - name: checkout code
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: Set hash
         id: vars
@@ -57,10 +57,10 @@ jobs:
             type=raw,value=latest
 
       - name: setup platform emulator
-        uses: docker/setup-qemu-action@v2
+        uses: docker/setup-qemu-action@v3
 
       - name: setup multi-arch docker build
-        uses: docker/setup-buildx-action@v2
+        uses: docker/setup-buildx-action@v3
 
       - name: Login to DockerHub
         uses: docker/login-action@v3

.github/workflows/docker.yml

@@ -22,7 +22,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: checkout code
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: Set hash
         id: vars
@@ -41,10 +41,10 @@ jobs:
           dir: 'backend/'
 
       - name: setup platform emulator
-        uses: docker/setup-qemu-action@v2
+        uses: docker/setup-qemu-action@v3
 
       - name: setup multi-arch docker build
-        uses: docker/setup-buildx-action@v2
+        uses: docker/setup-buildx-action@v3
 
       - name: Generate Docker image metadata
         id: docker-meta

.github/workflows/mocha.yml

@@ -18,12 +18,12 @@ jobs:
         node:
           - 16
     steps:
-      - uses: actions/setup-node@v3
+      - uses: actions/setup-node@v4
         with:
           node-version: '${{ matrix.node }}'
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: 'Cache node_modules'
-        uses: actions/cache@v3
+        uses: actions/cache@v4
         with:
           path: ~/.npm
           key: ${{ runner.os }}-node-v${{ matrix.node }}-${{ hashFiles('**/package-lock.json') }}

backend/package-lock.json

@@ -4888,9 +4888,9 @@
       }
     },
     "node_modules/undici": {
-      "version": "5.28.1",
-      "resolved": "https://registry.npmjs.org/undici/-/undici-5.28.1.tgz",
-      "integrity": "sha512-xcIIvj1LOQH9zAL54iWFkuDEaIVEjLrru7qRpa3GrEEHk6OBhb/LycuUY2m7VCcTuDeLziXCxobQVyKExyGeIA==",
+      "version": "5.28.4",
+      "resolved": "https://registry.npmjs.org/undici/-/undici-5.28.4.tgz",
+      "integrity": "sha512-72RFADWFqKmUb2hmmvNODKL3p9hcB6Gt2DOQMis1SEBaV6a4MH8soBvzg+95CYhCKPFedut2JY9bMfrDl9D23g==",
       "dependencies": {
         "@fastify/busboy": "^2.0.0"
       },