ci: bump cristalhq/.github from 0.7.0 to 0.8.1 (#59)

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.github/workflows/build.yml

@@ -19,7 +19,7 @@ on:
 # See https://github.com/cristalhq/.github/.github/workflows
 jobs:
   build:
-    uses: cristalhq/.github/.github/workflows/build.yml@v0.7.0
+    uses: cristalhq/.github/.github/workflows/build.yml@v0.8.1
 
   vuln:
-    uses: cristalhq/.github/.github/workflows/vuln.yml@v0.7.0
+    uses: cristalhq/.github/.github/workflows/vuln.yml@v0.8.1