Reuse the test/bench cache

Author: jneira

.github/workflows/hackage.yml

@@ -42,9 +42,9 @@ jobs:
           path: |
             ~/.cabal/packages
             ~/.cabal/store
-          key: v2-${{ runner.os }}-${{ matrix.ghc }}-hackage-${{ hashFiles('**/*.cabal') }}
+          key: v2-${{ runner.os }}-${{ matrix.ghc }}-build-${{ hashFiles('cabal.project') }}
           restore-keys: |
-            v2-${{ runner.os }}-${{ matrix.ghc }}-hackage-
+            v2-${{ runner.os }}-${{ matrix.ghc }}-bench-${{ hashFiles('cabal.project') }}
             v2-${{ runner.os }}-${{ matrix.ghc }}-build-
             v2-${{ runner.os }}-${{ matrix.ghc }}