chore(ci): break feature combo job for parallelization (#4131)

.github/workflows/blockifier_ci.yml

@@ -50,19 +50,29 @@ concurrency:
   cancel-in-progress: ${{ github.event_name == 'pull_request' }}
 
 jobs:
-  feature-combo-builds:
+  test-without-features:
     runs-on: starkware-ubuntu-latest-medium
     steps:
       - uses: actions/checkout@v4
-        with:
-          fetch-depth: 0
       - uses: ./.github/actions/bootstrap
       # No features - build blockifier without features activated by dependencies in the workspace.
-      - run: cargo build -p blockifier
       - run: cargo test -p blockifier
+      - run: cargo build -p blockifier
+
+  test-with-transaction-serde-feature:
+    runs-on: starkware-ubuntu-latest-medium
+    steps:
+      - uses: actions/checkout@v4
+      - uses: ./.github/actions/bootstrap
       # transaction_serde is not activated by any workspace crate; test the build.
-      - run: cargo build -p blockifier --features transaction_serde
       - run: cargo test -p blockifier --features transaction_serde
+      - run: cargo build -p blockifier --features transaction_serde
+
+  test-with-cairo-native-feature:
+    runs-on: starkware-ubuntu-latest-medium
+    steps:
+      - uses: actions/checkout@v4
+      - uses: ./.github/actions/bootstrap
       # cairo_native is not activated by any workspace crate; test the build.
-      - run: cargo build -p blockifier --features cairo_native
       - run: cargo test -p blockifier --features cairo_native
+      - run: cargo build -p blockifier --features cairo_native