fixed cache key

Author: asmyasnikov

.github/workflows/tests.yml

@@ -87,7 +87,7 @@ jobs:
           name: integration
   experiment:
     concurrency:
-      group: integration-${{ github.ref }}-${{ matrix.os }}-${{ matrix.go-version }}-${{ matrix.ydb-version }}
+      group: experiment-${{ github.ref }}-${{ matrix.os }}-${{ matrix.go-version }}-${{ matrix.ydb-version }}
       cancel-in-progress: true
     runs-on: ubuntu-latest
     strategy: