ci(e2e): simplify hub image tag — build from source, tag as 'test' (#34)

No need to fetch the latest release tag. We always build from the
current source tree, tag as 'test', load into kind, and tell the
e2e framework to use that tag via KEDGE_HUB_IMAGE_TAG=test.

Removes the 'Determine hub image tag' step entirely.

Addresses review comment by @mjudeikis.

Co-authored-by: Hex Bot <hex-bot@openclaw>

Author: mjudeikis

.github/workflows/e2e.yaml

@@ -36,24 +36,13 @@ jobs:
       - name: Build binaries
         run: make build
 
-      - name: Determine hub image tag
-        id: hub-tag
-        run: |
-          TAG=$(curl -sf https://api.github.com/repos/faroshq/kedge/releases/latest \
-            | jq -r '.tag_name // "v0.0.1-rc10"')
-          # Fallback if curl/jq fail or release has no tag
-          [ -z "$TAG" ] || [ "$TAG" = "null" ] && TAG="v0.0.1-rc10"
-          echo "tag=$TAG" >> "$GITHUB_OUTPUT"
-
       - name: Build hub Docker image
-        run: |
-          docker build -f deploy/Dockerfile.hub \
-            -t ghcr.io/faroshq/kedge-hub:${{ steps.hub-tag.outputs.tag }} .
+        run: docker build -f deploy/Dockerfile.hub -t ghcr.io/faroshq/kedge-hub:test .
 
       - name: Run standalone e2e
         env:
           KEDGE_HUB_IMAGE_PULL_POLICY: Never
-          KEDGE_HUB_IMAGE_TAG: ${{ steps.hub-tag.outputs.tag }}
+          KEDGE_HUB_IMAGE_TAG: test
         run: make e2e-standalone E2E_TIMEOUT=20m
 
       - name: Upload test logs on failure