Bump versions of the actions that we depend on

Hopefully, this will eliminate deprecation warnings being emitted by CI.

Author: david-christiansen

.github/workflows/main.yml

@@ -28,17 +28,17 @@ jobs:
     # Steps represent a sequence of tasks that will be executed as part of the job
     steps:
       # Checks-out your repository under $GITHUB_WORKSPACE, so your job can access it
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
         with:
           fetch-depth: 0
 
-      - uses: haskell/actions/setup@v1
+      - uses: haskell/actions/setup@v2
         name: Setup Haskell Stack
         with:
           ghc-version: ${{ matrix.ghc }}
           stack-version: ${{ matrix.stack }}
 
-      - uses: actions/cache@v1
+      - uses: actions/cache@v3
         name: Cache ~/.stack
         with:
           path: ~/.stack