fix: configure release-please workflow to use config files (#53)

The GitHub Actions workflow was explicitly passing release-type and package-name
parameters, which caused release-please to ignore .release-please-config.json.
This prevented the extra-files configuration from being processed, so Docker
image versions in docker-compose.yml and k8s/deployment.yaml were not being
automatically updated during releases.

Changes:
- Remove explicit parameters from release-please action to enable config file discovery
- Update k8s/deployment.yaml from v0.4.0 to v0.4.1 with x-release-please-version marker
- This allows release-please to automatically update both deployment files in future releases

Generated with [Claude Code](https://claude.com/claude-code)

Co-authored-by: Claude <[email protected]>

Author: MoonBoi9001

.github/workflows/release-please.yml

@@ -14,6 +14,3 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: google-github-actions/release-please-action@v4
-        with:
-          release-type: python
-          package-name: rewards-eligibility-oracle

k8s/deployment.yaml

@@ -16,7 +16,7 @@ spec:
     spec:
       containers:
       - name: rewards-eligibility-oracle
-        image: ghcr.io/graphprotocol/rewards-eligibility-oracle:v0.4.0
+        image: ghcr.io/graphprotocol/rewards-eligibility-oracle:v0.4.1 # x-release-please-version
         envFrom:
         # Load all non-sensitive configuration from ConfigMap
         - configMapRef: