hotfix: eics3rw: autopush: false

This will disable the eics3 buildcache that is currently having disk space issues. Buildcaches to eicweb and ghcr.io continue to be populated.

mirrors.yaml.in

@@ -22,7 +22,7 @@ mirrors:
       - ${GITHUB_REGISTRY_USER}
       - ${GITHUB_REGISTRY_TOKEN}
   eics3rw:
-    autopush: true
+    autopush: false
     signed: false
     fetch:
       url: s3://eictest/EPIC/spack/${SPACK_VERSION}