Fix cache restoration for Hypothesis CI job (#121756)

Author: webknjaz

.github/workflows/build.yml

@@ -393,7 +393,7 @@ jobs:
         path: ${{ env.CPYTHON_BUILDDIR }}/.hypothesis/
         key: hypothesis-database-${{ github.head_ref || github.run_id }}
         restore-keys: |
-          - hypothesis-database-
+          hypothesis-database-
     - name: "Run tests"
       working-directory: ${{ env.CPYTHON_BUILDDIR }}
       run: |