Update actions/checkout action to v5 (#30594)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

.github/workflows/end-to-end-tests.yaml

@@ -50,7 +50,7 @@ jobs:
             runners-matrix: ${{ steps.runner-vars.outputs.matrix }}
         steps:
             - name: Checkout code
-              uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4
+              uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5
               with:
                   repository: element-hq/element-web
 
@@ -129,7 +129,7 @@ jobs:
                     - runAllTests: false
                       project: Pinecone
         steps:
-            - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4
+            - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5
               with:
                   persist-credentials: false
                   repository: element-hq/element-web
@@ -201,7 +201,7 @@ jobs:
         if: always()
         runs-on: ubuntu-24.04
         steps:
-            - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4
+            - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5
               if: inputs.skip != true
               with:
                   persist-credentials: false