CI: adjust the workflows for the new "chrono" and "time" features

The definitions of GitHub workflow files for Scylla and Cassandra tests
are adjusted so that:

- We check that the code compiles with and without serialization
  features,
- All serialization features are enabled when Scylla/Cassandra tests are
  running.

.github/workflows/cassandra.yml

@@ -22,10 +22,10 @@ jobs:
         docker compose -f test/cluster/cassandra/docker-compose.yml up -d --wait
       # A separate step for building to separate measuring time of compilation and testing
     - name: Build the project
-      run: cargo build --verbose --tests
+      run: cargo build --verbose --tests --features "full-serialization"
     - name: Run tests on cassandra
       run: |
-        CDC='disabled' SCYLLA_URI=172.42.0.2:9042 SCYLLA_URI2=172.42.0.3:9042 SCYLLA_URI3=172.42.0.4:9042 cargo test --verbose -- --skip test_views_in_schema_info
+        CDC='disabled' SCYLLA_URI=172.42.0.2:9042 SCYLLA_URI2=172.42.0.3:9042 SCYLLA_URI3=172.42.0.4:9042 cargo test --verbose --features "full-serialization" -- --skip test_views_in_schema_info
     - name: Stop the cluster
       if: ${{ always() }}
       run: docker compose -f test/cluster/cassandra/docker-compose.yml stop

.github/workflows/rust.yml

@@ -26,16 +26,16 @@ jobs:
       run: cargo fmt --verbose --all -- --check
     - name: Clippy check
       run: cargo clippy --verbose --examples --tests -- -Aclippy::uninlined_format_args
-    - name: Cargo check without features
-      run: cargo check --manifest-path "scylla/Cargo.toml" --features ""
-    - name: Cargo check with secrecy feature
-      run: cargo check --manifest-path "scylla/Cargo.toml" --features "secret"
+    - name: Cargo check without serialization features
+      run: cargo check --manifest-path "scylla/Cargo.toml"
+    - name: Cargo check with all serialization features
+      run: cargo check --manifest-path "scylla/Cargo.toml" --features "full-serialization"
     - name: Build scylla-cql
-      run: cargo build --verbose --all-targets --manifest-path "scylla-cql/Cargo.toml"
+      run: cargo build --verbose --all-targets --manifest-path "scylla-cql/Cargo.toml" --features "full-serialization"
     - name: Build
-      run: cargo build --verbose --examples
+      run: cargo build --verbose --examples --features "full-serialization"
     - name: Run tests
-      run: SCYLLA_URI=172.42.0.2:9042 SCYLLA_URI2=172.42.0.3:9042 SCYLLA_URI3=172.42.0.4:9042 cargo test --verbose
+      run: SCYLLA_URI=172.42.0.2:9042 SCYLLA_URI2=172.42.0.3:9042 SCYLLA_URI3=172.42.0.4:9042 cargo test --verbose --features "full-serialization"
     - name: Stop the cluster
       if: ${{ always() }}
       run: docker compose -f test/cluster/docker-compose.yml stop
@@ -56,10 +56,10 @@ jobs:
         rustup override set ${{ env.rust_min }}
     - name: Print Rust version
       run: rustc --version
-    - name: MSRV cargo check with features
-      run: cargo check --verbose --examples --tests
-    - name: MSRV cargo check without features
-      run: cargo check --verbose --manifest-path "scylla/Cargo.toml"
+    - name: MSRV cargo check with all features
+      run: cargo check --verbose --all-targets --all-features
+    - name: MSRV cargo check scylla without features
+      run: cargo check --verbose --all-targets --manifest-path "scylla/Cargo.toml"
     - name: MSRV cargo check scylla-cql
       run: cargo check --verbose --all-targets --manifest-path "scylla-cql/Cargo.toml"