ci: lock tempfile and serde_with versions in CI (#7495)

* ci: lock tempfile and serde_with versions in CI

* Update test-core.yml

.github/workflows/test-core.yml

@@ -98,6 +98,8 @@ jobs:
           cargo update -p zbus_names --precise 2.5.0
           cargo update -p is-terminal --precise 0.4.7
           cargo update -p colored --precise 2.0.2
+          cargo update -p tempfile --precise 3.6.0
+          cargo update -p serde_with:3.1.0 --precise 3.0.0
 
       - name: test
         run: cargo test --target ${{ matrix.platform.target }} ${{ matrix.features.args }}