Developer: Github Actions should use cache steps (#1097)

* Add cache steps

* Add name property to cache step

* Remove bad copy & paste

Co-authored-by: Tom Limoncelli <tlimoncelli@stackoverflow.com>

.github/workflows/build.yml

@@ -20,6 +20,13 @@ jobs:
       uses: actions/setup-go@v2
       with:
         go-version: ^1.15
+    - name: Cache
+      uses: actions/cache@v2
+      with:
+        path: ~/go/pkg/mod
+        key: ${{ runner.os }}-go-${{ hashFiles('**/go.sum') }}
+        restore-keys: |
+          ${{ runner.os }}-go-
     - name: Build binaries
       run: go run build/build.go
     - name: Run unit tests
@@ -135,6 +142,13 @@ jobs:
       uses: actions/setup-go@v2
       with:
         go-version: ^1.15
+    - name: Cache
+      uses: actions/cache@v2
+      with:
+        path: ~/go/pkg/mod
+        key: ${{ runner.os }}-go-${{ hashFiles('**/go.sum') }}
+        restore-keys: |
+          ${{ runner.os }}-go-
     - name: Determining test viability for ${{ matrix.provider }} provider
       run: if [ -n "$${{ matrix.provider }}_DOMAIN" ] ; then echo "CAN_CONTINUE=yes" >> "$GITHUB_ENV" ; fi
     - name: Run integration tests for ${{ matrix.provider }} provider