Fixup riscv64

Author: williamdes

.github/workflows/publish.yml

@@ -24,7 +24,7 @@ jobs:
                     - { platform: "linux/386", internal-tag: "386" }
                     - { platform: "linux/ppc64le", internal-tag: "ppc64le" }
                     - { platform: "linux/amd64", internal-tag: "amd64" }
-                    - { platform: "linux/riscv64", internal-tag: "amd64" }
+                    - { platform: "linux/riscv64", internal-tag: "riscv64" }
         steps:
             - name: Checkout repository
               uses: actions/checkout@v6