upgrade checkout action to version with node20 (#2790)

Co-authored-by: Marco Munizaga <git@marcopolo.io>

.github/workflows/interop-test.yml

@@ -23,7 +23,7 @@ jobs:
     name: Run transport interoperability tests
     runs-on: ${{ fromJSON(vars['INTEROP_TEST_RUNNER_UBUNTU'] || '"ubuntu-22.04"') }}
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: Build image
         run: docker build -t go-libp2p-head -f test-plans/PingDockerfile .
       - uses: libp2p/test-plans/.github/actions/run-transport-interop-test@master

.github/workflows/link-check.yml

@@ -9,7 +9,7 @@ jobs:
   check-links:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: gaurav-nelson/github-action-markdown-link-check@v1
         with:
           use-quiet-mode: 'yes'   # show only broken links

.github/workflows/upstream.yml

@@ -32,10 +32,10 @@ jobs:
         run: |
           go version
           go env
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
         with:
           path: 'libp2p'
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
         with:
           repository: ${{ matrix.upstream }}
           path: upstream