Remove the cache/save action from CI (#1850)

Author: tchoutri

.github/workflows/master.yml

@@ -50,7 +50,7 @@ jobs:
         path: |
           ${{ steps.setup-haskell.outputs.cabal-store }}
           dist-newstyle
-        key: ${{ runner.os }}-ghc-${{ matrix.ghc }}-cabal-${{ hashFiles('**/plan.json') }}
+        key: ${{ runner.os }}-ghc-${{ matrix.ghc }}-cabal-${{ hashFiles('./dist-newstyle/cache/plan.json') }}
         restore-keys: ${{ runner.os }}-ghc-${{ matrix.ghc }}-
 
     - name: Install doctest
@@ -82,12 +82,3 @@ jobs:
         (cd servant-conduit && eval $DOCTEST)
         (cd servant-pipes && eval $DOCTEST)
         (cd servant-quickcheck && eval $DOCTEST)
-
-    - name: Save cache
-      uses: actions/cache/save@v4
-      if: always()
-      with:
-        path: |
-          ${{ steps.setup-haskell-cabal.outputs.cabal-store }}
-          dist-newstyle
-        key: ${{ runner.os }}-ghc-${{ matrix.ghc }}-cabal-${{ hashFiles('./.plan.json') }}