Provisionally disable the Stack CI, it's too flaky. (#1639)

Author: tchoutri

.github/workflows/master.yml

@@ -76,40 +76,40 @@ jobs:
         (cd servant-conduit && eval $DOCTEST)
         (cd servant-pipes && eval $DOCTEST)
 
-  stack:
-    name: stack / ghc ${{ matrix.ghc }}
-    runs-on: ubuntu-latest
-    strategy:
-      matrix:
-        stack: ["2.7.5"]
-        ghc: ["8.10.7"]
-
-    steps:
-    - uses: actions/checkout@v2
-
-    - uses: haskell/actions/setup@v1
-      name: Setup Haskell Stack
-      with:
-        ghc-version: ${{ matrix.ghc }}
-        stack-version: ${{ matrix.stack }}
-
-    - uses: actions/[email protected]
-      name: Cache ~/.stack
-      with:
-        path: ~/.stack
-        key: ${{ runner.os }}-${{ matrix.ghc }}-stack
-
-    - name: Install dependencies
-      run: |
-        stack build --system-ghc --test --bench --no-run-tests --no-run-benchmarks --only-dependencies
-
-    - name: Build
-      run: |
-        stack build --system-ghc --test --bench --no-run-tests --no-run-benchmarks
-
-    - name: Test
-      run: |
-        stack test --system-ghc
+  # stack:
+  #   name: stack / ghc ${{ matrix.ghc }}
+  #   runs-on: ubuntu-latest
+  #   strategy:
+  #     matrix:
+  #       stack: ["2.7.5"]
+  #       ghc: ["8.10.7"]
+
+  #   steps:
+  #   - uses: actions/checkout@v2
+
+  #   - uses: haskell/actions/setup@v1
+  #     name: Setup Haskell Stack
+  #     with:
+  #       ghc-version: ${{ matrix.ghc }}
+  #       stack-version: ${{ matrix.stack }}
+
+  #   - uses: actions/[email protected]
+  #     name: Cache ~/.stack
+  #     with:
+  #       path: ~/.stack
+  #       key: ${{ runner.os }}-${{ matrix.ghc }}-stack
+
+  #   - name: Install dependencies
+  #     run: |
+  #       stack build --system-ghc --test --bench --no-run-tests --no-run-benchmarks --only-dependencies
+
+  #   - name: Build
+  #     run: |
+  #       stack build --system-ghc --test --bench --no-run-tests --no-run-benchmarks
+
+  #   - name: Test
+  #     run: |
+  #       stack test --system-ghc
 
   ghcjs:
     name: ubuntu-latest / ghcjs 8.6