Pin mlugg/setup-zig external action SHA

Author: jstrieb

.github/workflows/main.yml

@@ -28,7 +28,7 @@ jobs:
         git checkout generated || git checkout -b generated
         git merge master
 
-    - uses: mlugg/setup-zig@v2
+    - uses: mlugg/setup-zig@d1434d08867e3ee9daa34448df10607b98908d29  # v2 tag
       with:
         version: 0.15.2
 

.github/workflows/release.yml

@@ -16,7 +16,7 @@ jobs:
     steps:
     - uses: actions/checkout@v6
 
-    - uses: mlugg/setup-zig@v2
+    - uses: mlugg/setup-zig@d1434d08867e3ee9daa34448df10607b98908d29  # v2 tag
       with:
         version: 0.15.2