Convert repository to lowercase

.gitea/workflows/build.yaml

@@ -26,9 +26,21 @@ jobs:
           username: ${{ gitea.repository_owner }}
           password: ${{ secrets.REGISTRY_TOKEN }}
 
+      - name: Prepare Meta
+        id: prepare
+        run: |
+          BITCOIN_VERSION=26.2
+          PLATFORM="linux/amd64"
+          REPO=${{ gitea.repository }}
+
+          echo ::set-output name=build_date::$(date -u +'%Y-%m-%dT%H:%M:%SZ')
+          echo ::set-output name=docker_platform::${PLATFORM}
+          echo ::set-output name=repository::${REPO,,}
+          echo ::set-output name=version::${BITCOIN_VERSION}
+
       - name: Build Docker image
         uses: docker/build-push-action@v6
         with:
-          platforms: linux/amd64
+          platforms: ${{ steps.prepare.outputs.docker_platform }}
           push: true
-          tags: git.prettyhefty.com/${{ gitea.repository_owner }}/${{ gitea.repository }}:26.2
+          tags: git.prettyhefty.com/${{ steps.prepare.outputs.repository }}:${{ steps.prepare.outputs.version }}