ci: move depot clippy and test jobs to 4-core runners (#14)

Author: anandpant

.depot/workflows/ci.yml

@@ -26,7 +26,7 @@ jobs:
         run: cargo fmt --all --check
   clippy:
     name: Clippy
-    runs-on: depot-ubuntu-24.04 # was: ubuntu-24.04. Mapped standard GitHub runner to Depot equivalent.
+    runs-on: depot-ubuntu-latest-4
     steps:
       - uses: actions/checkout@v4
       - name: Setup Depot
@@ -41,7 +41,7 @@ jobs:
         run: depot cargo clippy --workspace --all-targets --all-features -- -D warnings
   test:
     name: Test
-    runs-on: depot-ubuntu-24.04 # was: ubuntu-24.04. Mapped standard GitHub runner to Depot equivalent.
+    runs-on: depot-ubuntu-latest-4
     steps:
       - uses: actions/checkout@v4
       - name: Setup Depot