Update checkout and cache actions to v3

Author: warmwaffles

.github/workflows/ci.yml

@@ -18,12 +18,12 @@ jobs:
         elixir: ["1.14"]
         otp: ["25"]
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
       - uses: erlef/setup-beam@v1
         with:
           otp-version: ${{ matrix.otp }}
           elixir-version: ${{ matrix.elixir }}
-      - uses: actions/cache@v2
+      - uses: actions/cache@v3
         with:
           path: deps
           key: ${{ matrix.os }}-otp_${{ matrix.otp }}-elixir_${{ matrix.elixir }}-mix_${{ hashFiles('**/mix.lock') }}
@@ -46,12 +46,12 @@ jobs:
         elixir: ["1.14", "1.13", "1.12"]
         otp: ["25", "24", "23"]
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
       - uses: erlef/setup-beam@v1
         with:
           otp-version: ${{ matrix.otp }}
           elixir-version: ${{ matrix.elixir }}
-      - uses: actions/cache@v2
+      - uses: actions/cache@v3
         with:
           path: deps
           key: ${{ matrix.os }}-otp_${{ matrix.otp }}-elixir_${{ matrix.elixir }}-mix_${{ hashFiles('**/mix.lock') }}