Fix: Incorrect zip file name in Lambda Java release workflow

Problem:
The Lambda Java layer release fails because the workflow uses the wrong artifact (layer zip file) name.
https://github.com/aws-observability/aws-otel-java-instrumentation/actions/runs/17867947751

Solution:
Replaced layer.zip with the correct build artifact name: aws-opentelemetry-java-layer.zip.

Author: lukeina2z

.github/workflows/release-lambda.yml

@@ -213,7 +213,7 @@ jobs:
       - name: download layer.zip
         uses: actions/download-artifact@v4
         with:
-          name: layer.zip
+          name: aws-opentelemetry-java-layer.zip
       - name: Get commit hash
         id: commit
         run: echo "sha_short=$(git rev-parse --short HEAD)" >> $GITHUB_OUTPUT
@@ -237,16 +237,16 @@ jobs:
              --notes-file release_notes.md  \
              --draft \
              "lambda-v${{ github.event.inputs.version }}-${{ steps.commit.outputs.sha_short }}" \
-             layer_arns.tf layer.zip
+             layer_arns.tf aws-opentelemetry-java-layer.zip
           echo Removing release_notes.md ...
           rm -f release_notes.md
-      - name: Upload layer.zip and SHA-256 checksum to SDK Release Notes (tagged with latest)
+      - name: Upload aws-opentelemetry-java-layer.zip and SHA-256 checksum to SDK Release Notes (tagged with latest)
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
         run: |
           LATEST_SDK_VERSION=$(gh release list --repo "aws-observability/aws-otel-java-instrumentation" --json tagName,isLatest -q 'map(select(.isLatest==true)) | .[0].tagName')
-          # Generate SHA-256 checksum for layer.zip
-          shasum -a 256 layer.zip > layer.zip.sha256
-          # Upload layer.zip and its checksum to the latest SDK release note
-          gh release upload "$LATEST_SDK_VERSION" layer.zip layer.zip.sha256 --repo "aws-observability/aws-otel-java-instrumentation" --clobber
-          echo "✅ layer.zip successfully uploaded to $LATEST_SDK_VERSION in the upstream repo!"
+          # Generate SHA-256 checksum for aws-opentelemetry-java-layer.zip
+          shasum -a 256 aws-opentelemetry-java-layer.zip > aws-opentelemetry-java-layer.zip.sha256
+          # Upload aws-opentelemetry-java-layer.zip and its checksum to the latest SDK release note
+          gh release upload "$LATEST_SDK_VERSION" aws-opentelemetry-java-layer.zip aws-opentelemetry-java-layer.zip.sha256 --repo "aws-observability/aws-otel-java-instrumentation" --clobber
+          echo "✅ aws-opentelemetry-java-layer.zip successfully uploaded to $LATEST_SDK_VERSION in the upstream repo!"