Pin chrisns/.github action to 1b49d8c

Author: renovate[bot]

.github/workflows/dockerimage.yml

@@ -3,7 +3,7 @@ on: [push]
 
 jobs:
   build:
-    uses: chrisns/.github/.github/workflows/dockerbuild.yml@main
+    uses: chrisns/.github/.github/workflows/dockerbuild.yml@1b49d8cf1d74ef5c4d24d2d6a7ce17c772f06c4d # main
     with:
       platforms: linux/amd64,linux/arm/v6,linux/arm/v7,linux/arm64,linux/ppc64le,linux/s390x
     secrets: