CI: cache-deps: add 'dist-newstyle' caching

Author: Anton-Latukha

.github/workflows/cache-deps.yml

@@ -103,6 +103,17 @@ jobs:
                         ${{ env.cache-name }}-${{ runner.os }}-${{ matrix.ghc }}-${{ env.HACKAGE_TIMESTAMP }}-
                         ${{ env.cache-name }}-${{ runner.os }}-${{ matrix.ghc }}-
 
+      - name: dist-newstyle cache
+        uses: actions/cache@v2
+        env:
+          cache-name: dist-newstyle
+        with:
+          path: dist-newstyle
+          key:          ${{ env.cache-name }}-${{ runner.os }}-${{ matrix.ghc }}-${{ env.HACKAGE_TIMESTAMP }}-${{ hashFiles('cabal.project') }}
+          restore-keys: |
+                        ${{ env.cache-name }}-${{ runner.os }}-${{ matrix.ghc }}-${{ env.HACKAGE_TIMESTAMP }}-
+                        ${{ env.cache-name }}-${{ runner.os }}-${{ matrix.ghc }}-
+
       - if: ( runner.os != 'Windows' ) && ( matrix.ghc != '8.6.5' )
         name: Build
         run: cabal v2-build --enable-tests --enable-benchmarks --only-dependencies