Update goto-bus-stop/setup-zig CI action

Author: mlugg

.github/workflows/ci.yml

@@ -19,7 +19,7 @@ jobs:
         uses: actions/checkout@v3
         with: { fetch-depth: 0, submodules: 'recursive' }
       - name: Install Zig
-        uses: goto-bus-stop/setup-zig@v1
+        uses: goto-bus-stop/setup-zig@v2
         with: { version: master }
       - name: Build
         run: |
@@ -46,7 +46,7 @@ jobs:
         uses: actions/checkout@v3
         with: { fetch-depth: 0, submodules: 'recursive' }
       - name: Install Zig
-        uses: goto-bus-stop/setup-zig@v1
+        uses: goto-bus-stop/setup-zig@v2
         with: { version: master }
       - name: Build
         run: |