Update setup-zig action to v2

Maybe this does the trick?

Author: sin-ack

.github/workflows/all-debug-compile-only.yml

@@ -17,7 +17,7 @@ jobs:
       - uses: actions/checkout@v4
 
       - name: Setup Zig
-        uses: mlugg/setup-zig@v1
+        uses: mlugg/setup-zig@v2
         with:
           version: 0.15.0-dev.1149+4e6a04929
 

.github/workflows/run-tests.yml

@@ -16,7 +16,7 @@ jobs:
       - uses: actions/checkout@v4
 
       - name: Setup Zig
-        uses: mlugg/setup-zig@v1
+        uses: mlugg/setup-zig@v2
         with:
           version: 0.15.0-dev.1149+4e6a04929