.github/workflows/build.yaml: fix typo

closes #20

Author: meator

.github/workflows/build.yaml

@@ -78,7 +78,7 @@ jobs:
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v2
 
-      - name: Login to GCHR
+      - name: Login to GHCR
         if: github.event_name != 'pull_request'
         uses: docker/login-action@v2
         with: