minor fixes

Author: ezhang6811

.github/workflows/main-build.yml

@@ -11,7 +11,6 @@ on:
         description: 'The branch, tag or SHA to checkout'
         required: false
         type: string
-        default: ''
 env:
   AWS_DEFAULT_REGION: us-east-1
   STAGING_ECR_REGISTRY: 611364707713.dkr.ecr.us-west-2.amazonaws.com

scripts/get_upstream_versions.py

@@ -41,10 +41,6 @@ def get_latest_otel_versions():
                 otel_java_contrib_version = version_match.group(1)
                 break
 
-        if not otel_java_contrib_version:
-            print("Warning: No stable contrib releases found")
-            otel_java_contrib_version = "1.48.0"  # fallback
-
         return otel_java_instrumentation_version, otel_java_contrib_version
 
     except requests.RequestException as request_error: