CI quick-checks: Pull Rust deps in advance (paritytech#4867)

Pull the Rust dependencies in advance to see if there is an issue with
timeouts.

---------

Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>

.github/workflows/checks-quick.yml

@@ -55,8 +55,14 @@ jobs:
       image: ${{ needs.set-image.outputs.IMAGE }}
     steps:
       - uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4.1.1
+      - name: fetch deps
+        run: |
+          # Pull all dependencies eagerly:
+          time cargo metadata --format-version=1 --locked > /dev/null
       - name: run zepter
-        run: zepter run check
+        run: |
+          zepter --version
+          time zepter run check
   test-rust-features:
     runs-on: ubuntu-latest
     timeout-minutes: 10