Update mlirDistro.yml

Author: fifield

.github/workflows/mlirDistro.yml

@@ -395,7 +395,7 @@ jobs:
           #   ENABLE_RTTI: OFF
 
     steps:
-      - uses: actions/download-artifact@v3
+      - uses: actions/download-artifact@v4
         with:
           name: build_artifact_${{ matrix.OS }}_${{ matrix.ARCH }}_rtti_${{ matrix.ENABLE_RTTI }}
           path: dist
@@ -471,7 +471,7 @@ jobs:
       contents: write
 
     steps:
-      - uses: actions/download-artifact@v3
+      - uses: actions/download-artifact@v4
         with:
           # unpacks default artifact into dist/
           # if `name: artifact` is omitted, the action will create extra parent dir