chore(deps): update ko-build/setup-ko action to v0.8 (#228)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

Diff for: .github/workflows/push_container_image.yaml

@@ -24,7 +24,7 @@ jobs:
         with:
           go-version-file: go.mod
 
-      - uses: ko-build/setup-ko@v0.7
+      - uses: ko-build/setup-ko@v0.8
 
       - name: Docker meta
         id: meta