ci: restore El SDK v1.2.1 release download (repo clone uses incompatible elc)

.gitea/workflows/deploy.yaml

@@ -80,7 +80,8 @@ jobs:
           git clone --depth 1 \
             "https://will:${CHECKOUT_TOKEN}@git.neuralplatform.ai/neuron-technologies/el.git" \
             "$DEST"
-          echo "EL_HOME=$DEST/lang" >> "$GITHUB_ENV"
+          ls -la "$DEST" | head -5
+          echo "EL_HOME=$DEST" >> "$GITHUB_ENV"
 
       - name: Authenticate to GCP
         id: auth
@@ -103,12 +104,15 @@ jobs:
       - name: Configure docker auth for Artifact Registry
         run: gcloud auth configure-docker us-central1-docker.pkg.dev --quiet
 
-      - name: Get elc (pre-built linux/amd64 from El repo)
+      - name: Get elc (pre-built linux/amd64 from El SDK release)
         if: steps.changetype.outputs.asset_only != 'true'
         run: |
           set -euo pipefail
-          chmod +x "$EL_HOME/dist/platform/elc-linux-amd64"
-          ln -sf "$EL_HOME/dist/platform/elc-linux-amd64" "$EL_HOME/dist/platform/elc"
+          curl -fL -o "$EL_HOME/dist/platform/elc" \
+            https://git.neuralplatform.ai/neuron-technologies/el/releases/download/v1.2.1/elc-linux-amd64
+          chmod +x "$EL_HOME/dist/platform/elc"
+          file "$EL_HOME/dist/platform/elc"
+          ls -la "$EL_HOME/dist/platform/elc"
 
       - name: Compute image tag
         id: tag