ci: Downgrade tokio to 1.29 and flate2 to 1.0.26 (#7646)

* ci: Downgrade tokio to 1.29

* downgrade flate2 too

.github/workflows/test-core.yml

@@ -100,6 +100,8 @@ jobs:
           cargo update -p colored --precise 2.0.2
           cargo update -p tempfile --precise 3.6.0
           cargo update -p serde_with:3.2.0 --precise 3.0.0
+          cargo update -p tokio --precise 1.29.0
+          cargo update -p flate2 --precise 1.0.26
 
       - name: test
         run: cargo test --target ${{ matrix.platform.target }} ${{ matrix.features.args }}