chore(deps): update docker/login-action action to v4

Author: renovate[bot]

.github/workflows/ci.yml

@@ -146,7 +146,7 @@ jobs:
         run: "curl -sL https://raw.githubusercontent.com/crossplane/crossplane/master/install.sh | sh"
 
       - name: Login to GitHub Container Registry
-        uses: docker/login-action@v3
+        uses: docker/login-action@v4
         with:
           registry: ghcr.io
           username: ${{ github.repository_owner }}